Pylivestream

* confirm dialog before stream/save begin (bypass with -y/--yes option)
* update OO API with .golive() and .save() options
* documentation update to emphasize need to have *.key files with hexadecimal stream IDs

* add CI for Windows (AppVeyor)
* fix .coveragerc for Coveralls

all platforms:
* enable video-only capture

Windows:
* use gdigrab by default instead of dshow, as dshow didn't work for me on Windows 10.

Also dedupe and making self-test more robust, improving test coverage.

using numpy.interp() for simple linear interpolation instead of large scipy.interpolate. SciPy is no longer used at all.

v.1.4.3
Minor bugfix after further testing with restream.io

Note, for best metadata (more views) when using restream.io, be sure to set Title before stream starts, particularly for Periscope.



v.1.4.2
Add restream.io, a free multi-site streaming service with optional paid add-ons. While PyLivestream itself emits multiple streams from your PC, you might choose to emit only one stream to restream.io, which emits multiple streams, one to each service.

Fixed bug with interpolation of video bitrate introduced in v1.4.1.

v.1.4.0
* streamlined .ini file, to use over-rideable defaults instead of many duplicated parameters
* better documentation
* interpolate resolution -> bitrate where exact match not found
* automatically read resolution and FPS of input files, for each file
* allow specifying FFmpeg path, for those with multiple FFmpeg versions installed