Address Wordpress plugin directory reported issue

• remove redundant and disallowed <link> in admin HTML

Removed debug logging

Removed some debugging output in admin management screen.

Fixed documentation

1.0.1

Fixed Wordpress plugin header

Initial Release

Basic functionality implemented and support for the Israeli Pelepay payment processor.

Currently payment processor selection is mostly hard-coded, but care was taken to put all Pelepay-specific code in a processor class so it should be relatively easy to add additional processors.