Finish v0.5.0
Merge branch 'master' into develop
#79 resolved. added source maps.
#80 removed headers.
Merge pull request #81 from joola/feature/#80

#80 removed headers.
#80 progress with REST support
#84 added npm shrinkwrap
#83 publishing version 0.5.1
#83 rollback of version change.
Merge pull request #82 from joola/feature/#80

#80 progress with REST support
#83 version bump 0.5.1
#83 Finish v0.5.1