Upgrade to scoped-property-store@0.13.0 for :racehorse:
Dispose of subscriptions on SpacePen views in callRemoveHooks

Fixes atom/bracket-matcher#75
Upgrade to language-python@0.20
Upgrade to settings-view@0.151
Only parse package.json when it is a file

Closes #3784
Upgrade to welcome@0.19
Upgrade to tree-view@0.130
Wire initial module cache
:memo: Add a couple notes
Add initial cache lookup method
Ignore native modules since they are already cached
Do hasOwnProperty check first
Parse resource path for relativizing cache paths
:lipstick:
Explicitly register cache
Add initial task to generate dependencies
Use fs.listSync
Make dependencies an array of objects
relative -> relativePath
Store main path of module

This is the key in Module._cache