Update to the install.txt - changed a few instructions to be more clear and also the version number.

This should be moved to a GitHub md file.
Merge pull request #1328 from eka7a/master

Fixed if used information page by return terms, show warning message.
Fixed undefined notice for profile description in cart.

Fixes: #1297
Added isset check on get variable for coupon and voucher redirect action.
Updated README.md
modules not to show if not products to display
Moved Function Tool/Captcha