v0.1.3.5
added a category extending UIColor for converting hexadecimal RGB values to UIColor objects; added alternating table cell colors; added an app icon (WIP); added pen color selection buttons; changed loginView IBOutlets from strong to weak retention; modified keyboard animation on the login page; various UI changes; changed bar tint and bar text tint in app delegate; added a function to wireDrawing for converting hex RGB values to GLKVector3 objects; added a gesture recognizer for spinning the color wheel; moved the gesture recognizer setup into its own function to call when appropriate; added color selection handling; began writing color wheel spin gesture function - this is WIP