Demo branch
Merge branch 'master' into demo
ShipsTray preliminary
Merge branch 'demo' of https://github.com/Shipyards/Naval-Knockout into demo
Lots of work--Yay
added utility meethod to calculate visibility
added visible flag to tile
Merge branch 'demo' of https://github.com/Shipyards/Naval-Knockout into demo
checks for OOB and inverts tile loop since 2D array rows go top-to-bottom
src/Classes/Ship.h

fixed index bugs + added cannon tile scanner
Implement Cannon-shot/health and persistence
Merge
tile creation will now make reefs
Merge branch 'demo' of https://github.com/Shipyards/Naval-Knockout into demo

Conflicts:
	src/Classes/Tile.m
Visibility testing
Resolved conflicts
swap indices to get visibility of each ship
Set new scenes invisible
Merge branch 'demo' of https://github.com/Shipyards/Naval-Knockout into demo
length bug