[NOP] code formatting
[FEATURE,TEST] refactored AASequence creation from string, increased robustness of parsing (fixed #818), updated tests
Merge branch 'develop' of https://github.com/OpenMS/OpenMS into AASeq-robustness
Merge branch 'develop' of https://github.com/OpenMS/OpenMS into AASeq-robustness
[DOC] updated AASequence documentation
[TEST] removed tests of 'AASequence::fromUnmodifiedString'

'fromUnmodifiedString' was not needed after rewrite of 'fromString' and was not merged in
[INTERNAL] removed 'AASequence::parseUnmodifiedString_' (no longer needed)
[DOC] added new doc_class_only target that builds only the class documentation
adds doc_class_only to the targets messages (incl. cleanups of the targets messages)
Merge pull request #876 from aiche/doc/class_only_target

[DOC] added new doc_class_only target
[INTERNAL] peak boundaries fixed
[TEST] PeakPickerHiRes_test fixed
[TEST] TOPP tests fixed
[TEST] TOPP tests fixed
[TEST] added SuperHirn library to style tests (addendum to #764)
[TEST] added full path to style test names

 * e.g., FeatureFinderCentroided.cpp_cpplint_test -> src/topp/FeatureFinderCentroided.cpp_cpplint_test
[BUILD,TEST] added coding-style test to travis
[TEST,CI] disabled building when doing style tests (reduces runtime)
[TEST,CI] install missing cppcheck on travis-ci machines
[TEST,CI] fake 0 build errors for style testing