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)

* Major reformat of file:  should be much more intuitive now :)
I separated the window defines, calendar code, and init code instead of having them
intertwined in that nasty spaghetti code...

Lets get integrating!