Merge pull request #245 from chuckdumont/work2

Implement gzip of non-aggregated resources
com.ibm.jaggr.core.impl.cache.AggregatorProxy using wrong classloader
causing issues when trying to omit jaggr-core from Required-Bundles
Merge pull request #248 from chuckdumont/work2

Work2
Merge pull request #247 from chuckdumont/work

com.ibm.jaggr.core.impl.cache.AggregatorProxy using wrong classloader
Fix context bug with multiple nested LESS imports
Merge pull request #249 from chuckdumont/work3

Fix context bug with multiple level nesting of LESS imports
[maven-release-plugin] prepare release jaggr-1.2.1
[maven-release-plugin] prepare for next development iteration
Fix CSS builder issue with nested URL functions
Merge pull request #251 from chuckdumont/work3

Fix CSS builder issue with nested URL functions
Merge remote-tracking branch 'openntf/master' into work2