Merge tag '0.6.1' into develop

v0.6.1
Added missing parenthesis in docstring
Merge remote-tracking branch 'origin/develop' into develop

Conflicts:
	rx/linq/observable_time.py
Added pip install for twisted, tornado, gevent
Merge branch 'develop' of github.com:dbrattli/RxPY into develop
Moved some operators, added some tests
Updated doc with schedulers
Added operator
Updated coveralls token
Updated VS project file
Added Scheduler properites for common schedulers
Added example
Moved all observable time operators
Updated doc
Moved more tests
Working on example
Code cleanup
Fixed konamicode example code
Fix for konami example
Added select_switch