Add implicit license agreement for contributions to the project.
update development requirements
reorg info tab #194 and remove report bugs #189
disable 'Load more arrivals' while reloading
fix crash when trying to load more arrivals in report problem
add ability to debug via UI alert
log app type and show in settings if debug app
fix deselection of clicked options
alert sentence cleanup

[skip ci]
update releasing details

[skip ci]
code cleanup
fix contact us, agencies, and settings buttons
Add TWSReleaseNotesView
update gitignore to ignore Xcode checkout files
Update project to remove unneeded files
Add a helper class to handle displaying the release notes view and wire it up in the App Delegate
Minor change to how we determine if it's a new release and add notes describing why I changed it.
Update credits
Hoist the key we use in the Info.plist file into a constant NSString, and ensure that it is used everywhere in the file in order to prevent the release notes from popping up on every app launch
update changelog