Merge branch '1.1'

Authored by mwolff on May 4 2018, 4:35 PM.

Description

Merge branch '1.1'

Merged Changes

CommitAuthorDetailsCommitted
bab1109ec488mwolff
Use check-c_source_compiles to find unw_set_cache_size 
May 4 2018
dd6a4e83ca6bmwolff
Include and find zstd in the AppImage bundle 
May 4 2018
a3716f0965e4mwolff
Don't report a runtime error when zstd isn't found 
May 4 2018