Fix #115 - Server list ordered alphabetically, with "Custom server" as
last element.
Merge branch 'master' of https://github.com/CUTR-at-USF/OpenTripPlanner-for-Android into issue115
Fix #115 - Changed "Custom server" to be first on the list.
Merge pull request #121 from vreixo/issue115

Fix #115 - Server list ordered alphabetically
Merge pull request #126 from vreixo/issue119

Fix #119 - Servers updated each 3 days in the background.