Changed wording, added test script.

Changed wording for easier understanding of upgrades. Added a test
script include for further testing of this application.
Added total dollars

Added total dollars earned into the stats page.
Fixed some venues not looking to be clickable

"Hire shed venue" and "Have a concert" both now have a pointer cursor
when hovered over.
Added tests for info tab flashing and upgrade prices

Added some tests to show that the information tab flashes after the
information is cleared, and that the prices for upgrades turns into a
negative number after a number of them have been purchased.
Added fixes for issues raised in 5490459b tests
Merge pull request #1 from Jazzalaw/gh-pages

Fixes to upgrade costs, general UI improvements