Merge pull request #26 from Eye-Static/stephens

Updated files with score function.
fix x-y, problems with tile dragging containment
change all x-y to y-x, add donut board
fix merge conflicts
remove stupid extra server.js
minor tweaks to score
Merge pull request #27 from Eye-Static/andy

Make all coordinates y x instead of x y. One bug remains
scores non-cumulative, checks for straight lines
add blank letter dialog box, refactor board listeners
Merge branch 'master' into andy
Merge pull request #28 from Eye-Static/andy

Blank tile dialog and board listener refactor
resolving conflicts
resolving more conflicts
fixing bugs
Merge pull request #29 from Eye-Static/zach

Zach
Style signin page
fixing conficts
fixing conflicts
Fixing conflict
fixing conflicts