Add custom error handlers

Note that the handlers included here are just the defaults for love.
We'll be changing these in the future to send items to Sentry
adds "hidden" chest and small change to breakable_block
added boulder and support for larger breakable block
Merge branch 'master' into hidden-chest
Sentry client first pass
updated boulder to have animation
adds initial lightning
adds scrolls
remove lightning death
adds dying animation
forgot image
adds sfx and speeds up animation
sound property
removes thumbs.db
Merge branch 'master' into lightning
Merge branch 'master' into sentry
Add DSN parsing to the sentry module

Followed the DSN section of the Raven Documentation
https://sentry.readthedocs.org/en/latest/developer/client/index.html
Start creating the correct JSON payload
Delegate error handling to the application

Call out to a separate endpoint to report the errors.
Remonve unneeded tests