Added the increase contrast toggle to the settings
Merge pull request #289 from Wizecoder/constrast-toggle

Added an increase contrast toggle to the settings
Post notification when increase contrast is toggled.
Reload map view when that notification is sent.
Merge pull request #291 from Wizecoder/increase-contrast-notification

Post notification when increase contrast is toggled.
Increase contrast of map & stop details view, #278
Merge pull request #292 from OneBusAway/278-increase-contrast

Issue #278, Increase Contrast