Email: updated URL to bug in comment.

No code changes.
pom.xml(maven-javadoc-plugin): updated to 2.9.1

@see http://www.mail-archive.com/announce@maven.apache.org/msg00544.html

Fixes CVE-2013-1571
MySql5InnoDbDialect: use <a> tag in @see section for links.

Fixed warnings from javadoc.
Fixed logging when application runs under jetty.

log4j tries to get log4j.properties at src/main/resources directory while file located inside
subdirectory. To specify propper location we need to set log4j.configuration system property with
path to log4j configuration file. Also important that the path starts from file:/// because by
default log4j will do search relative to classpath.

@see http://logging.apache.org/log4j/1.2/faq.html#noconfig
@see http://stackoverflow.com/questions/9995347/slf4j-log4j-not-initialized-in-jetty-maven-plugin
pom.xml(maven-compiler-plugin): updated to 3.1

@see http://www.mail-archive.com/announce@maven.apache.org/msg00536.html

No functional changes.
pom.xml(maven-checkstyle-plugin): updated to 2.10

This also updates CheckStyle to 5.6

Due to removal DoubleCheckedLocking check from CheckStyle I'm forced to remove it from our rules.

@see http://www.mail-archive.com/announce@maven.apache.org/msg00524.html
@see https://jira.codehaus.org/browse/MCHECKSTYLE-189
@see http://checkstyle.sourceforge.net/releasenotes.html

No functional changes.
pom.xml(maven-pmd-plugin): updated to 3.0.1

This also updates PMD to 5.0.2

@see http://www.mail-archive.com/announce@maven.apache.org/msg00523.html
@see http://www.mail-archive.com/announce@maven.apache.org/msg00532.html
@see http://sourceforge.net/projects/pmd/files/pmd/5.0.2/

No functional changes.
pom.xml(maven-{surefire,failsafe}-plugin): updated to 2.15

@see http://www.mail-archive.com/announce@maven.apache.org/msg00531.html
@see http://www.mail-archive.com/announce@maven.apache.org/msg00537.html
@see http://www.mail-archive.com/announce@maven.apache.org/msg00543.html

No functional changes.
fixed formatting