Revised formatting, buttons, and window flow

Revised main window size
revised button width via Teresa's code
WIP: mouse-over color change of buttons
Login Window now pops up first w/ create account functionality via documentation :)
Revised buttons on main window via Lauren's suggestions (please advise if more needed)

Lets get integrating!
Merge pull request #18 from hyperstrike/patch-11

Revised formatting, buttons, and window flow