Add nomnom as a dependency
Set up the cli extract command's options
Merge branch 'feature/issue-6-support-the-gettext-modifier-methods' into feature/issue-3-give-jspot-a-cli
Merge branch 'feature/issue-7-use-now-when-making-pot-files' into feature/issue-3-give-jspot-a-cli

Conflicts:
	package.json
Merge branch 'develop' into feature/issue-3-give-jspot-a-cli
Add 'tmp' as a dev dependency
Fix testing script so that it does not try lint the fixture files
Fix pot headers generated in potter module (now that we are testing against real pot files)
Add a simple extraction test
Implement a basic extract command for the cli
Add test for cli extract keyword option
Add cli extract test for multiple domain files
Update potter to give each translation object a msgctxt property instead of msgctx (gettext-parser's docs are probably out of date)
Add cli extract test for multiple contexts
Add explatory comment for po-revision-date header's stubbyness
Shift PO-Revision-Date in pot fixtures after changing ordering of default header properties
Add missing assertion for error.pot in cli extract's domains test
Be more graceful about our tmpdir creation in cli tests
Allow headers to be configurable in potter module
Fix pot fixtures after changing around ordering of headers set when creating new pots (we really need to be ensuring the ordering somehow)