Switched branch to upcoming release 3.1.10
Upgraded to Apache Felix Http Bundle 2.2.1 #

Resolves #300
Worked around a bug in the maven versions plugin
Fixed the next execution trigger test for January

closes #310
Fixed Removed the DoubleCheckedLocking rule which is no longer supported
POM cleanup and upgrad of plugin versions across the board
Resolved potential cyclic dependencies when registering REST endpoints

Closes #314
Fixed wrong plugin group id
Fixing attribute names for declarative services

Closes #316
Merge remote-tracking branch 'origin/r/3.1.x' into r/3.1.x
Removed duplicate http bundle reference
Downgrade Felix HTTP bundle to v.2.2.0 due to unfixed incompatibilities in v.2.2.2
Commons dependencies updated

Commons Codec 1.6 --> 1.9
Commons Pool 1.5.3 --> 1.6
Commons FileUpload 1.2.1 --> 1.3
Commons IO 2.1 --> 2.4

Updates #318
Ordered bundles of first start level by name
Explicit version removed, defined in parent POM
_exportcontents added to solve warnings

updates #313
Fixed deadlock upon site registration

Closes #319
Switched to updated http bundle 2.2.2
Using the context class loader to load resources from the shared context
Introduced constant for servlet-name