[FIX] fixed unity build error by renaming internal namespace in IndexedMzMLDecoder
[CI] added unity build test to travis
[CI] added unity to ci build name
Merge pull request #910 from aiche/fix/unity-build

[FIX] fixed unity build error introduced in #845
[BUILD] suppress certain warnings

- suppress undef macros because of platform-specific macros
- add Wno-unknown-pragmas for gcc only (since gcc does not know the
  clang specific diagnostic pragmas)
[FIX] added pragmas

- suppress warnings in certain positions where we either believe that
  the code is correct (or the code is unfixable)
[BUILD] ignore additional warnings for clang
Merge pull request #821 from hroest/fix/suppress-warnings

[FIX,BUILD] suppress clang warnings