Install trac account manager, update global test
Add ctags config. Add ctags temporary files to gitignore.
Add ticket comment on sponsorship #7
Refactor paypal_rest to prepare plugin architecture

In addition started paypal_standard.
Implement PayPal Standard / Button payment gateway #33
Add missing config properties for PayPal standard
Confirmation message after completing PayPal payment #73
Allow immediate payment on accepted tickets. Link when user not logged.
Configurable mapping between Trac and bountyfunding statuses #38
Added slashes for directories in .gitignore
Removed wildignore from vimrc because I automatically read .gitignore
Rename 'ASSIGNED' to 'STARTED' state #79
Disallow sponsoring your own task (simplified) #12
Remove irrelevant dir from .gitignore