Merge pull request #34 from ericbmerritt/next

various bug fixes to symlinks.
Merge pull request #35 from ericbmerritt/next

minor wording fixes to contributing
update travis config
update README with travis status
update Makefile to remove deps dir on distclean
Merge pull request #41 from ericbmerritt/next

remove debug print statement that some how made it in
Merge pull request #40 from tsloughter/next

Merging this as the R14B* problems are preexisting and will be fixed in a separate patch.
fix unexpected variable issue in build
support both R14 'behaviours' and R15+ 'callback info'