Added option to download submission with tests and nbproject folder
so that its easier for TA's to debug students code / try it on their
machines.
Made JVM options settable in .tmcrc.
Cleaned up indentation and minor refactoring
And refactored full zip to its own controller for nicer paths
Extracted copying tmcrun and chmoding it to superclass method
Added changelog for all changes which are affecting the user experience
and visible or noticable by users and maintainers.
Removed unnecessary tests
Merge pull request #156 from jamox/zippi

Added option to download submission with tests and nbproject folder
Allow runtime_params (JVM params) to be set in metadata.yml.
Merge pull request #157 from testmycode/runtime_params

Allow runtime_params (JVM params) to be set in metadata.yml.
Fix nil error in submission_packager.
Updated ext/tmc-spyware-server
Remove ext/tmc-check. No need for it to be a submodule.
Don't show "Not yet unlocked." if exercise doesn't require unlock.
Update ext/tmc-spyware-server.
Set production config.action_mailer.delivery_method = :sendmail.
Merge remote-tracking branch 'upstream/master'