PHP 5.3.0 compatibility changes
undo of a did
(left a line commented out that should not have been)
note of clarity
protected 	@set_magic_quotes_runtime(0); from running under PHP 5.3, as it will trigger the loading of the Exceptions class, which triggers get_config() which will statically load some config items that might change later with $assign_to_config
fixed a bug in r1718 where the PHP version key was cast as float in a particular test, making the array keys used by is_php() inaccurate beyond whole number versions

http://codeigniter.com/bug_tracker/bug/8475/
code comment cleanup
let's go ahead and be thorough and explicit

	if ( ! is_php(5))

becomes

	if ( ! is_php('5.0.0'))

ref: http://codeigniter.com/bug_tracker/bug/8475/
Added CI cheatsheets
Clarified required parameters.
Clarified required parameters (again)
Modified MSSQL driver to use mssql_get_last_message() for error messages.
example fix
comment fix
example fix
example fix
Fixed a bug in the Calendar library where the shortname was output for "May".
Fixed a bug in the language class when outputting an error for an unfound file.
changes some EE references to CI in the styleguide
updating xml_from_result to check for list_fields instead of field_names
removed an unneeded regex