change protection messages to status messages instead of error messages for account edit page and new account creation.

only check  user/X/edit fields for protections if they exist.  clean up the display of current protections so that only the fields being actively protected are displayed. Eliminate password fields if protected, rather than displaying disabled fields.

added 'change own e-mail' and 'change own password' perms for the module.  these mirror the 'change own username' perm in core and allow admins role-based control over these fields as well.  when a user is editing their own account, only these perms are checked for the email and password protection settings.

Users should be able to edit their own username, email, and password--too restrictive otherwise. Admins can still limit users changing their username via the role-based permissions at admin access control.

fixed bad variable name in install function. grammer cleanup. fixed query for grabbing user protections -- must be of up_type 'user'

major rewrite.  per user settings now override role settings for the user in question. added per admin bypass settings -- these override the default administrator bypass settings for the user admin in question and both the default and per admin bypass settings are configurable by protection. rewrote all doc to reflect the new changes.

root user and admin users bypass options are now per protection. fixed protection display message so that it doesn't show bypassed protections on the user edit page.

fixed bad concat spacing. fixed bad array name in validation function. fixed poor t() string substitution.

added section title and description to the by roles table. fixed punctuation error. added module help.