Problem: truncates example code at first '@' character

Solution: correctly end only on @discuss or @end tags.
Merge pull request #57 from hintjens/master

Problem: truncates example code at first '@' character
Problem: project needs way to assert dependency version
Solution: (autotools only) use PKG_CHECK_MODULES to assert on minimum
required version of a library.
Merge pull request #59 from sappo/master

Problem: project needs way to assert dependency version