Merge pull request #759 from acres4/feature/multiCall

Feature/multi call
Front Line - fixed mis-ordered logic that would allow a user to go on break while on other call(s)
Supervisor - same fix as Front Line regarding going on break while on other call(s)
Supervisor - prevent the user from making a speed call if he is on break or admin duties
Front Line - prevented user from creating a speed call via the create call button while on a break or admin duties.  Join call is not yet prevented.
Changed previous commit's checks to only apply when the user is making a call for himself
Front Line - added checks against joining a call while on break/admin duties
When creating a speed call, breaks are not longer given as options if the user is on at least one other call already
Merge pull request #760 from acres4/feature/multiBreakFix

Going on break while on a call
Merge pull request #761 from acres4/feature/makeCallOnBreakFix

Prevent creation of new calls while on break
Revert "Merge pull request #756 from acres4/feature/newRelic"

This reverts commit 33912d37ba002e0a33e0f94c81a3678f882eec55, reversing
changes made to 4fe149a2c4f62c51a11eb51887c9eacb712f7c4f.
Merge pull request #762 from acres4/feature/removeRelic

Removing New Relic due to crashes
Revert "Revert "Merge pull request #756 from acres4/feature/newRelic""

This reverts commit b5bfe7e606d4ebc95657ec9fc5db931935732643.
Kai - initializing Crittercism without instrumentation. we do get that with our tier level and it appears to cause a crash on iOS 7.1
Moved KVO listening from viewDidLoad to init to prevent crash
Cleaned up KVO unsubscribe
Added a check before joining/creating/stealing a call due to card insertion to make sure this call would not put the current user over the maximum number of simultaneous calls.
Merge pull request #764 from acres4/feature/maxCallCardIn

Card insertion pushing users over max calls
We can now put a MAC address into /Library/Application Support/acres4/simulatorID.txt and it will keep our simulator IDs from constantly changing!  What a time to be alive!  Hooray!
NO != NULL