Replace explicit version number by wildcard when possible.
Add debian/libcoil.symbols.
Add debian/libopenrtm-aist.symbols.
Remove two lintian overrides resolved by previous commits.
Update .gitignore file.
Fix symbols files to avoid embedding the Debian version number.
Remove unused Lintian override.
Remove unused Lintian override.
Fix libopenrtm-aist.symbols.