Fix ajax.js to call the callback on failures
Fix ajax.js to call the callback on failures

Scoutski/pebblejs,demophoon/Trimet-Tracker,effata/pebblejs,arekom/pebble-github,dennisdegreef/foober,bkbilly/Tvheadend-EPG,effata/pebblejs,demophoon/Trimet-Tracker,lavinjj/pebblejs,zanesalvatore/transit-watcher,tbloncar/pebble-sitestatus,zanesalvatore/transit-watcher,ishepard/TransmissionTorrent,gwijsman/OpenRemotePebble,stephanpavlovic/pebble-kicker-app,Meiguro/simplyjs,dennisdegreef/foober,ento/pebblejs,sunshineyyy/CatchOneBus,youtux/PebbleShows,jsfi/pebblejs,pebble/pebblejs,jiangege/pebblejs-project,kylepotts/fooder,LeZuse/pebble-transit-app,gwijsman/OpenRemotePebble,robinkam/pebblejs,nickarino/pebble_reminder_js,fletchto99/pebblejs,LeZuse/pebble-transit-app,wearscript/wearscript-pebble,lavinjj/pebblejs,lavinjj/pebblejs,daduke/LMSController,arekom/pebble-github,pebble/pebblejs,nickarino/pebble_reminder_js,dennisdegreef/foober,daduke/LMSController,kylepotts/fooder,youtux/pebblejs,youtux/PebbleShows,youtux/pebblejs,tbloncar/pebble-sitestatus,Scoutski/pebblejs,tbloncar/pebble-sitestatus,daduke/LMSController,gwijsman/OpenRemotePebble,LeZuse/pebble-transit-app,jsfi/pebblejs,bkbilly/Tvheadend-EPG,ento/pebblejs,ento/pebblejs,LeZuse/pebble-transit-app,carlo-colombo/dublin-bus-pebble,effata/pebblejs,stephanpavlovic/pebble-kicker-app,youtux/pebblejs,LeZuse/pebble-transit-app,stephanpavlovic/pebble-kicker-app,yosukesuzuki/MarketsForPebble,kylepotts/fooder,youtux/pebblejs,kylepotts/fooder,bkbilly/Tvheadend-EPG,ishepard/TransmissionTorrent,robinkam/pebblejs,sunshineyyy/CatchOneBus,wearscript/wearscript-pebble,dennisdegreef/foober,robinkam/pebblejs,pebble/pebblejs,jsfi/pebblejs,zanesalvatore/transit-watcher,ento/pebblejs,demophoon/Trimet-Tracker,lavinjj/pebblejs,carlo-colombo/dublin-bus-pebble,gwijsman/OpenRemotePebble,sunshineyyy/CatchOneBus,yosukesuzuki/MarketsForPebble,nickarino/pebble_reminder_js,wearscript/wearscript-pebble,nickarino/pebble_reminder_js,Scoutski/pebblejs,demophoon/Trimet-Tracker,pebble/pebblejs,Scoutski/pebblejs,jiangege/pebblejs-project,nickarino/pebble_reminder_js,yosukesuzuki/MarketsForPebble,arekom/pebble-github,gwijsman/OpenRemotePebble,carlo-colombo/dublin-bus-pebble,fletchto99/pebblejs,jiangege/pebblejs-project,dhpark/pebblejs,effata/pebblejs,jiangege/pebblejs-project,zanesalvatore/transit-watcher,stephanpavlovic/pebble-kicker-app,robinkam/pebblejs,youtux/pebblejs,frizzr/CatchOneBus,carlo-colombo/dublin-bus-pebble,ishepard/TransmissionTorrent,kylepotts/fooder,ento/pebblejs,tbloncar/pebble-sitestatus,daduke/LMSController,tbloncar/pebble-sitestatus,fletchto99/pebblejs,Meiguro/simplyjs,zanesalvatore/transit-watcher,sunshineyyy/CatchOneBus,dhpark/pebblejs,arekom/pebble-github,bkbilly/Tvheadend-EPG,pebble/pebblejs,effata/pebblejs,youtux/PebbleShows,Scoutski/pebblejs,dennisdegreef/foober,ishepard/TransmissionTorrent,jiangege/pebblejs-project,frizzr/CatchOneBus,Meiguro/simplyjs,frizzr/CatchOneBus,nickarino/pebble_reminder_js,dhpark/pebblejs,jsfi/pebblejs,ishepard/TransmissionTorrent,dhpark/pebblejs,frizzr/CatchOneBus,daduke/LMSController,robinkam/pebblejs,robinkam/pebblejs,arekom/pebble-github,fletchto99/pebblejs,jsfi/pebblejs,bkbilly/Tvheadend-EPG,yosukesuzuki/MarketsForPebble,carlo-colombo/dublin-bus-pebble,stephanpavlovic/pebble-kicker-app,demophoon/Trimet-Tracker,fletchto99/pebblejs,sunshineyyy/CatchOneBus,lavinjj/pebblejs,youtux/PebbleShows,dhpark/pebblejs