[NEXUS-5667] Update to ExtJS 3.4.1.1
[NEXUS-5598] HTML markup fixes
[NEXUS-5596,NEXUS-5598] Enable IE10 rendering mode
Merge pull request #835 from sonatype/nexus-5667-update-extjs-3.4.1.1

[NEXUS-5667] Update to ExtJS 3.4.1.1