initial pass at settings page

Bitbucket private repos still won't update correctly :P
bump
cleanup
more cleanup and some PHPDocs
only needed on admin
bump
correctly use `register_setting` and use `self`
cleanup Bitbucket private repo callback
readme and changes
bump
Saved message and i18n
correcty place getting options and labels
PHPDoc for class
i18n
add uninstall.php
more i18n
clarify mu-plugin
README updates
Merge branch 'settings-page' into develop

Conflicts:
	github-updater.php
move to init() to avoid

initiating settings page prior to $ghu_plugins and $ghu-themes being populated.