[INTERNAL] moved FFSH code from header to source
[NOP] reordered includes according to convention (1st OpenMS, then stl)
[NOP] applied uncrustify to all files touched in this branch
[INTERNAL] fixed cppcheck error in FFSH
[FIX] added dll export to FFSH
Merge pull request #1124 from aiche/feature/remove-template-from-featurefinder

[NOP] addendum to #1123