Add linux configure script
Add multicontext example (refs #19)
Convert multi context example to test (differing behavior for all three major operating systems, refs #19)
Replace _MSVC_VER with _WIN32
Merge pull request #27 from hpicgs/multi_context_example

Add multicontext example (closes #19)
Merge remote-tracking branch 'origin/master' into grouped_bitfields
fix test