Summary: Try to dis-ambiguate various button types and colors. Moves `simple` to `phui-button-simple` and moves colors to `button-color`.
Test Plan: Grep for buttons still inline, UIExamples, PHUIX, Herald, and Email Preferences.
Reviewers: epriestley
Reviewed By: epriestley
Subscribers: Korvin
Differential Revision: https://secure.phabricator.com/D18077
Summary: Move individual controller files into cooresponding folders. Makes it easier to locate sections and expand without clutter. Also made "chargelist" part of account since it's tied to having an account specifically.
Test Plan: Vist charges, merchants, subscription, accounts, and other pages. No errors from file move.
Reviewers: epriestley
Reviewed By: epriestley
Subscribers: Korvin
Differential Revision: https://secure.phabricator.com/D17587
