feat(fix-build): updates regex dependencies

moved from gnunet_regex_lib.h to gnunet_regex_service.h
somewhere between v0.9.5 and v0.10.x
adds gitignore for all the generated crap and such

closes #1
updates .gitignore to anly apply to generate files in po folder
fix(tests): Removed unused legacy include of gnunet_regexp_lib.h

The tests do now compile but all ot them fail.
chore(.gitignore): Ignore test binaries
Merge pull request #2 from vsaw/feature/1-fix-build

feat(fix-build): updates regex dependencies