Merge pull request #134 from softwaremaverick/fix-notifications

Notification ID should be used when starting a service in the foreground not startId
Enforce lock of service binding/unbinding when executing a request. Issue https://github.com/octo-online/robospice/issues/144
Added pre-set services for Google http client module.
Pmd fix
[ci skip]
Merge branch 'master' into master-fixed

Conflicts:
	CHANGELOG.md~