Update test dependencies logback, slf4j and commons-fileupload
Remove test dependency cglib because it's bundled with spring
Update surefire plugin
Update libraries
Try to resolve #76 and #54
Make the conversionService configurable and try to choose one if there
are more than one in the Spring application context
Update Spring and maven-site-plugin
Bump test dependency hibernate to 4.2.2.Final
Add support for characters <,<=,=,>=,>,!=
ExtJs supports these characters in the operator field
http://docs.sencha.com/extjs/4.2.0/#!/api/Ext.util.Filter-cfg-operator
Add some unit tests for #77. Resolves #77
Resolves #78
Bump jackson to 2.2.2 and test dependency h2
Revert back spring to 3.2.2, because 3.2.3 ist not backward compatible

See this issue for more information
https://jira.springsource.org/browse/SPR-10578

ExtDirectSpring does work fine with Spring 3.2.3 but we should not
force other projects to update.
Update readme with new version information