[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
[FEATURE] mzTab 1.0 init from SVN
[TEST] extended example
[FIX] adapted test file and tests for quoted MzTabParameter object
^
regex doesnt support ,, yet
[FIX] parsing of quotes MzTabParameter
[FIX] added comment and empty line tracking
[FIX] fix parse errors for 1.0.0 meta values
[FIX] removed old file. switched to boost regex
[NOP] fixed peptide colum indices
[FIX] improved MzTab examples used in test
[fix] removed invalid functionality
[FIX] adaption to MzTab 1.0.0