Update pom.xml

Added exclude for stax. JDK 1.6 and above include StAX support by default, including StAX will cause class incompatibility issues in 1.6+ 
A ROOT webapp context path is actually an empty string
Upgrade to Tomcat 7.0.34
Merge pull request #18 from ryanbrainard/upgrade-7.0.34

Upgrade to Tomcat 7.0.34
update tests to point to new version
[maven-release-plugin] prepare release webapp-runner-7.0.34.0
[maven-release-plugin] prepare for next development iteration
Merge pull request #13 from derekslife/master

Exclude stax as dependency due to it already being packaged in jdk6
Merge pull request #17 from bimsapi/feature/upgrade-redis-session-store

Upgrade redis session store library
Merge pull request #14 from jamesward/master

A ROOT webapp context path is actually an empty string
update redis session manager to version .5
Merge branch 'master' of github.com:jsimone/webapp-runner
update redis session manager to version .5, remove support for multiple war files due to issues with distributed session management
[maven-release-plugin] prepare release webapp-runner-7.0.34.1
[maven-release-plugin] prepare for next development iteration