v3.2
build: remove duplicated entries in .gitignore
Add generated lexer.c to dist, user should not need flex
Add workaround for snprintf and older msvc.
Refactor, use is_set() macro everywhere to check opt/cfg flags
Fix comment reset when assigning new value
Issue #96: Add Windows/mingw compatible fmemopen() replacement
Fix #98: Verify string argument in lexerl.l:trim_whitespace()