Removed the unnecessary settings in terasoluna-gfw-security-web/pom.xml #158

I've removed the unnecessary settings.

* dependency to `spring-webmvc`
* dependency to `tomcat-jsp-api`
* dependency to `jstl`
* dependency to `javax.inject`

Please review #158, and merge to master branch.

**[Before dependencies]** (output using `mvn dependency:tree`)
```
aopalliance:aopalliance:jar:1.0:compile
ch.qos.logback:logback-classic:jar:1.0.13:compile (version managed from 1.0.13)
ch.qos.logback:logback-core:jar:1.0.13:compile
com.google.guava:guava:jar:13.0.1:compile (version managed from 13.0.1)
com.h2database:h2:jar:1.3.156:test
javax.inject:javax.inject:jar:1:compile
javax.servlet:jstl:jar:1.2:compile
javax.validation:validation-api:jar:1.0.0.GA:compile
joda-time:joda-time:jar:2.2:compile (version managed from 2.2)
junit:junit:jar:4.7:test
org.apache.tomcat:tomcat-el-api:jar:7.0.40:provided
org.apache.tomcat:tomcat-jsp-api:jar:7.0.40:provided
org.apache.tomcat:tomcat-servlet-api:jar:7.0.40:provided
org.aspectj:aspectjrt:jar:1.7.4:compile (version managed from 1.7.4)
org.aspectj:aspectjweaver:jar:1.7.4:compile (version managed from 1.7.4)
org.codehaus.jackson:jackson-core-asl:jar:1.9.7:compile (version managed from 1.9.7)
org.codehaus.jackson:jackson-mapper-asl:jar:1.9.7:compile (version managed from 1.9.7)
org.easytesting:fest-assert:jar:1.4:test
org.hibernate:hibernate-validator:jar:4.3.1.Final:compile (version managed from 4.3.1.Final)
org.jboss.logging:jboss-logging:jar:3.1.0.GA:compile (version managed from 3.1.0.GA)
org.lazyluke:log4jdbc-remix:jar:0.2.7:compile (version managed from 0.2.7)
org.mockito:mockito-all:jar:1.9.0:test
org.slf4j:jcl-over-slf4j:jar:1.7.5:compile (version managed from 1.7.5)
org.slf4j:slf4j-api:jar:1.7.5:compile (version managed from 1.7.5)
org.springframework.data:spring-data-commons:jar:1.6.4.RELEASE:compile (version managed from 1.6.4.RELEASE)
org.springframework.security:spring-security-acl:jar:3.2.5.RELEASE:compile
org.springframework.security:spring-security-config:jar:3.2.5.RELEASE:compile (version managed from 3.2.5.RELEASE)
org.springframework.security:spring-security-core:jar:3.2.5.RELEASE:compile (version managed from 3.2.5.RELEASE)
org.springframework.security:spring-security-taglibs:jar:3.2.5.RELEASE:compile
org.springframework.security:spring-security-web:jar:3.2.5.RELEASE:compile
org.springframework:spring-aop:jar:3.2.10.RELEASE:compile (version managed from 3.2.10.RELEASE)
org.springframework:spring-aspects:jar:3.2.10.RELEASE:compile (version managed from 3.2.10.RELEASE)
org.springframework:spring-beans:jar:3.2.10.RELEASE:compile
org.springframework:spring-context-support:jar:3.2.10.RELEASE:compile (version managed from 3.2.10.RELEASE)
org.springframework:spring-context:jar:3.2.10.RELEASE:compile (version managed from 3.2.10.RELEASE)
org.springframework:spring-core:jar:3.2.10.RELEASE:compile
org.springframework:spring-expression:jar:3.2.10.RELEASE:compile
org.springframework:spring-jdbc:jar:3.2.10.RELEASE:compile
org.springframework:spring-orm:jar:3.2.10.RELEASE:compile (version managed from 3.2.10.RELEASE)
org.springframework:spring-test:jar:3.2.10.RELEASE:test
org.springframework:spring-tx:jar:3.2.10.RELEASE:compile
org.springframework:spring-web:jar:3.2.10.RELEASE:compile
org.springframework:spring-webmvc:jar:3.2.10.RELEASE:compile
org.terasoluna.gfw:terasoluna-gfw-common:jar:1.1.0-SNAPSHOT:compile (version managed from 1.1.0-SNAPSHOT)
org.terasoluna.gfw:terasoluna-gfw-security-core:jar:1.1.0-SNAPSHOT:compile
org.terasoluna.gfw:terasoluna-gfw-web:jar:1.1.0-SNAPSHOT:compile
org.easytesting:fest-util:jar:1.1.6:test
```

**[After dependencies]** (output using `mvn dependency:tree`)
```
aopalliance:aopalliance:jar:1.0:compile
ch.qos.logback:logback-classic:jar:1.0.13:compile (version managed from 1.0.13)
ch.qos.logback:logback-core:jar:1.0.13:compile
com.google.guava:guava:jar:13.0.1:compile (version managed from 13.0.1)
com.h2database:h2:jar:1.3.156:test
javax.inject:javax.inject:jar:1:compile (version managed from 1)
javax.servlet:jstl:jar:1.2:compile (version managed from 1.2)
javax.validation:validation-api:jar:1.0.0.GA:compile
joda-time:joda-time:jar:2.2:compile (version managed from 2.2)
junit:junit:jar:4.7:test


org.apache.tomcat:tomcat-servlet-api:jar:7.0.40:provided
org.aspectj:aspectjrt:jar:1.7.4:compile (version managed from 1.7.4)
org.aspectj:aspectjweaver:jar:1.7.4:compile (version managed from 1.7.4)
org.codehaus.jackson:jackson-core-asl:jar:1.9.7:compile (version managed from 1.9.7)
org.codehaus.jackson:jackson-mapper-asl:jar:1.9.7:compile (version managed from 1.9.7)
org.easytesting:fest-assert:jar:1.4:test
org.hibernate:hibernate-validator:jar:4.3.1.Final:compile (version managed from 4.3.1.Final)
org.jboss.logging:jboss-logging:jar:3.1.0.GA:compile (version managed from 3.1.0.GA)
org.lazyluke:log4jdbc-remix:jar:0.2.7:compile (version managed from 0.2.7)
org.mockito:mockito-all:jar:1.9.0:test
org.slf4j:jcl-over-slf4j:jar:1.7.5:compile (version managed from 1.7.5)
org.slf4j:slf4j-api:jar:1.7.5:compile (version managed from 1.7.5)
org.springframework.data:spring-data-commons:jar:1.6.4.RELEASE:compile (version managed from 1.6.4.RELEASE)
org.springframework.security:spring-security-acl:jar:3.2.5.RELEASE:compile
org.springframework.security:spring-security-config:jar:3.2.5.RELEASE:compile (version managed from 3.2.5.RELEASE)
org.springframework.security:spring-security-core:jar:3.2.5.RELEASE:compile (version managed from 3.2.5.RELEASE)
org.springframework.security:spring-security-taglibs:jar:3.2.5.RELEASE:compile
org.springframework.security:spring-security-web:jar:3.2.5.RELEASE:compile
org.springframework:spring-aop:jar:3.2.10.RELEASE:compile (version managed from 3.2.10.RELEASE)
org.springframework:spring-aspects:jar:3.2.10.RELEASE:compile (version managed from 3.2.10.RELEASE)
org.springframework:spring-beans:jar:3.2.10.RELEASE:compile
org.springframework:spring-context-support:jar:3.2.10.RELEASE:compile (version managed from 3.2.10.RELEASE)
org.springframework:spring-context:jar:3.2.10.RELEASE:compile (version managed from 3.2.10.RELEASE)
org.springframework:spring-core:jar:3.2.10.RELEASE:compile
org.springframework:spring-expression:jar:3.2.10.RELEASE:compile
org.springframework:spring-jdbc:jar:3.2.10.RELEASE:compile
org.springframework:spring-orm:jar:3.2.10.RELEASE:compile (version managed from 3.2.10.RELEASE)
org.springframework:spring-test:jar:3.2.10.RELEASE:test
org.springframework:spring-tx:jar:3.2.10.RELEASE:compile
org.springframework:spring-web:jar:3.2.10.RELEASE:compile
org.springframework:spring-webmvc:jar:3.2.10.RELEASE:compile (version managed from 3.2.10.RELEASE)
org.terasoluna.gfw:terasoluna-gfw-common:jar:1.1.0-SNAPSHOT:compile (version managed from 1.1.0-SNAPSHOT)
org.terasoluna.gfw:terasoluna-gfw-security-core:jar:1.1.0-SNAPSHOT:compile
org.terasoluna.gfw:terasoluna-gfw-web:jar:1.1.0-SNAPSHOT:compile
org.easytesting:fest-util:jar:1.1.6:test
```