We should only build if all definitions are resolved. This is very important for incremental compilation.
(still lacking support in anonymous functions and var calls)
Very simplistic gen_server callback example
Adds forgotten rebar get-deps command to the Makefile
Add makefile that will use sinan if found, or rebar otherwise
On each evaluation, shell will remove __joxa_shell__ after applying it.
readlink -f is not cross-platform and doesn't work on OS X.