Started better handling for threads
Merge tag '0.9.3' into develop

v0.9.3
Fixed link to Travis-CI
Cleanup
List for nonlocal vars not needed here
Added takewithtime
Merge branch 'develop' into feature/threads
Added NewThreadScheduler
Merge branch 'feature/threads' into develop
Added some docstrings for schedulers
Fixed typo in variable name
Removed unused imports
Private subscribe will always receive an observer
Wrapped some long lines
Added threading synch for subjects and disposables
Bumped version
Merge branch 'release/0.10'