added the swift version for ClosestFacilitySample
updated the folder structure for the objective C sample
fixed the following issues:

1) Upon changing the cutoff time slider in the settings page, the slider value is displayed as double instead of int.
2) App crashes if you first find some closest facilities for an incident, then bring up settings page and change some values, and then hit the Find CF button again to find results for that same incident.
3) Unable to add barriers
removed  println()
renamed folders
fixed workspace
Merge branch 'master' into gagan_ClosestFacilitySample_swift

Conflicts:
	All Samples.xcworkspace/contents.xcworkspacedata
Merge pull request #76 from Esri/gagan_ClosestFacilitySample_swift

Gagan closest facility sample swift