experimental-0.2.0

Changes:

• snippets are now stored in electron's data folder (old snippets are moved there on the first run of the source build)
• packaged builds (e.g. .exe, .app, etc.) now work
• experimental auto-updating

Note on migrating snippets:
If you have previously run from source, you should do so one more time before using the packaged application.
The extra-cautious may want to backup their snippets (found in src/snippets.json)