Fix for multiple identical soundcards
- handle duplicate sound card names by storing the index too (solves issue #70)
- make the CaptureTimeout for LPCM/WAV configurable in the config.toml, with a default of 2000 msec (as it was hardcoded before). If no sound is captured for a CaptureTimeout period, a block of slience of (CaptureTimeout / 4) msec length is sent to the receiver (was previously 250 msec hardcoded). See also issue #71.
- for some reason I can no longer compile fltk on Windows with MSVC, so fltk-bundled is used for now on Windows
Windows 64 bit binaries and setup in assets