Per-client memory usage reporting feature.
Some additional comments won't hurt.
Fixed building on GCC 4.6.
Proper macro name for CGgroup option.
Merge branch 'master' of github.com:cocaine/cocaine-core
Merge pull request #48 from 3Hren/fix

Missing argument added.
Added some more contributors.
Merge branch 'master' of github.com:cocaine/cocaine-core
Some beatifulization.
Merge branch 'memory-usage-reports'
Changelog update.
Minor cleanup.
Merge remote-tracking branch 'upstream/master' into ExceptionalStuff