Simplifies user creation.

Uses wp_insert_user() function to create a user upon application approval.
This also fixes issue with failing to save user_url properly.
Merge pull request #28 from clioweb/fix_user_url_registration

Simplifies user creation.
Fixes issues with user notification and user metadata

Restored the function thatcamp_registrations_update_user_data and the
password and user notification function.
Updated files

Mainly I'm trying to get GIT to work, so I don't remember what changes
I made, but this is the current production version. Cut me some slack.
Ensure that randomly generated password is sent along to wp_insert_user(), so that the password emailed to the user is correct.
Fixes #30
Adds code to send email notifications of acceptance/rejection.
See #29.
Merge pull request #31 from boonebgorges/master

Fix for #30
Ensure that usernames are unique before attempting to create WP users. See #32
Merge pull request #34 from boonebgorges/master

Fix for #32
Minor text changes

Changed language on public registration form to eliminate confusion
between "registering" and "applying."
Revert 8ccb53f542719d46c70c3454f9773d4bf9ae67aa^..HEAD
Revert 8ccb53f542719d46c70c3454f9773d4bf9ae67aa^..HEAD
Added text to public reg form about what is made public.
Fixed issue #36

Plugin will now notify users who already have an account on
thatcamp.org that they've been added to a particular site. Default
welcome text is set my Network Admin in Settings.
Undid last commit

Previous commit causes unnecessary notifications to be sent when
registrant status is changed.
Changed 'application' to 'registration' in public text

I changed all instances of "application" to "registration" for admins
and users to decrease user confusion. I did not change any variable,
function, or column names; those still have names such as
'application_text'.
Made create user accounts the default setting

Made automatically create user accounts the default setting.
Changed text in admin screen

Put instructions about how to generate the registration form by
creating a page with the shortcode [thatcamp-registration] directly in
the admin screen.
Fixed bug with admin setting for creating user accounts

I probably fixed it wrong, and I'm amazed it even seems to work at all,
but the plugin wasn't letting admins choose the "No" option for
creating user accounts. I stuck some code in there that seems to fix
it.
Added warning message

Added warning message in thatcamp-registrations-admin for site admins
not to test with their own email address, since approving or rejecting
will strip their admin privs.