The use of realpath() to clean up relative file names caused some
trouble in certain setups relying on symlinks or having restricitve
file structure setups.

This patch replaces all realpath() calls with a PHP only replacement
which should solve those problems.

darcs-hash:20070930184250-7ad00-512ff04c95f57fc9eaf104f80372237a3c94286f.gz

This patch adds a security token to all forms generated through the new
form class. However it is only checked for possible dangerous actions like
editing or profile changes.

darcs-hash:20070830191429-7ad00-445efea47a09a4823dfe9e3434ba5b355a80daf6.gz

darcs-hash:20070804071840-7ad00-2b1c11bc7890ab5f145e4d0545e962c144fb460a.gz

Replaces a number of *FORM_INJECTION events with a more flexible way of
modifying forms. Forms are created with a Doku_Form class (inc/form.php)
that can be manipulated by plugins prior to output. Plugins register a
HTML_{$name}FORM_OUTPUT event which can modify the form object prior to
output. Available forms are:
  LOGIN DRAFT CONFLICT REGISTER UPDATEPROFILE EDIT RESENDPWD
Documentation for the Doku_Form class is in inc/form.php.

darcs-hash:20070730215007-6942e-a0cf08197f939e224a2b28c40aec5431b118ea94.gz