Merge pull request #6 from Icehawk78/Saeldur

Saeldur
Update fc_bookmarklet_loader.js
Update frozen_cookies.js
Remove gradient
Adding new info
Fix for manual purchases being reverted (without cookies being reverted)
Add lots of information to the README
Create upgrade prerequisite JSON object
Update and rename cc_upgrade_prerequisites.json to cc_upgrade_prerequisites.js
Add estimated effective CPS
Adding chained upgrades. Will likely ruin everything.
Update cc_upgrade_prerequisites.js
Update cc_upgrade_prerequisites.js
Edited to fix Issue #7

A problem that I was experiencing is that when the update for the FC menu was happening the menu would pop back up to the top of the screen i.e. it would scroll back up so I could not see all options.

This fix eliminates that issue and I also believe that we may see some speed improvements but that is yet to be proven.
Fixing typos
Spacing
Fix for Chained Purchases. I hope.
Update README.md
Update fc_button.js
Reverting previous changes

Feel free to add the previous changes back in at a later date, if you can verify that all information stays the same.

Perhaps if we only create the headers once, and *every* time it gets updated, you change the html, but before values were being duplicated or lost, and I couldn't figure out where they were lined up.