Use account today date for syncing timer
Load server timer stats in the background
Optimized skip checks for tone recognition
Display basic language information on account view
Added skip threshold check to recognizer params
Remove fifth tone from stroke recognition process

Right now the only way to select the fifth tone is by tapping. This
fixed problems with the other tones recognitions for the most part.
Undelegate study events between prompt loading
Added chevron icons to prompt navigation area
Show hide navigation arrows based on position
Test getting next prompt without review check
Handle load errors where item is missing
Return active review with error report
Update raygun api  to version 1.8.3
Throw error when submitting review errors

This will provide both a better message and stack trace.
Remove custom data from raygun report for now
Removed unused method from the user model
Fixed a minor missing semicolon linting issue
Reverted some navigation button logic due
Merge pull request #199 from mcfarljw/daily-updates

Daily updates