Add function to parse package descriptors [#9]
[Fix #9] Add function to create packages from TARs
Add myself as maintainer
Run tests against byte-compiled source

Load the byte compiled file via ert-runner configuration, and add a
little sanity assertion to be sure we are using the right EPL.
Add tests for -from-file and -from-descriptor-file [#9]
Prevent superfluous recompilation