Core files

Core files with most bug fixes.

Still needed:
General code cleanup
Email methods need to be tested
Cleanup of examples
IF Cleanup

Change IF statements to CI style
Example controller cleanup

Changed example controller method declaration to CI style
Comments

Added comments to example controller
Error Display in Views

Normalized error display in views
Library Bug Fixes

Small library bug fixes
Activation Method Correction

Corrected activation method declaration
Library code formatting

Formatting of library code
Renaming to fix naming convention issue on case-sensitive file-systems.
Renamed to fix naming convention issue on case-sensitive file-systems.
The library had a lower-case i in the class definition, uppercased that too.
Changed SQL to be more generic. The previous was using what phpMyAdmin considered to be invalid syntax (double quotes on table and field names) and lots of MySQL specific stuff.
Fixed my idiotic commit struggles with model. Sorry about that folks, repo is back to normal.
Added is_group() to check if user is in a specific group.
Additional data is now added correctly, and group_name can be set as 5th param for ->ion_auth->register(), defaulting to default_group.
Emal Bug Fixes

Fixes to email code and fixed bad code that Phil so graciously pointed out
Typecasting and Docblocks

Typecasting boolean returns in library.  Corrected docblock return comments.
Username and Email check on registration

Added username and email check on registration
Minor tweaks to clean up views.
Merge branch 'master' of git@github.com:benedmunds/CodeIgniter-Ion-Auth