Major tasks undertaken in this patch:
* New format_text argument, overflowdiv.
* New page layout Report.
* Review of all format_text calls.
* Added support for the report layout to all themes.
* Changed forum post display from tables to divs.

AMOS BEGIN
 MOV [allowguests,core],[allowguests,enrol_guest]
AMOS END

Course create/update/cancel now navigates back to where u came from (namely /course/index.php & /course/category.php).
 (except when creating by default in Misc whereby you're sent to Misc where the course was created)

MDL-22950 adding new component column to the files table, unfortunately this change requires changes in all 2.0dev code, please review all custom code that was already upgraded to 2.0; fixing multiple problems and regressions in mod/assignment

MDL-21782 reworked enrolment framework, the core infrastructure is in place, the basic plugins are all implemented; see the tracker issue for list of unfinished bits, expect more changes and improvements during the next week

AMOS START
    MOV [sendcoursewelcomemessage,core_admin],[sendcoursewelcomemessage,enrol_self]
    MOV [configsendcoursewelcomemessage,core_admin],[sendcoursewelcomemessage_desc,enrol_self]
    MOV [enrolstartdate,core],[enrolstartdate,enrol_self]
    MOV [enrolenddate,core],[enrolenddate,enrol_self]
    CPY [welcometocourse,core],[welcometocourse,enrol_self]
    CPY [welcometocoursetext,core],[welcometocoursetext,enrol_self]
    MOV [notenrollable,core],[notenrollable,core_enrol]
    MOV [enrolenddaterror,core],[enrolenddaterror,enrol_self]
    MOV [enrolmentkeyhint,core],[passwordinvalidhint,enrol_self]
    MOV [coursemanager,core_admin],[coursecontact,core_admin]
    MOV [configcoursemanager,core_admin],[coursecontact_desc,core_admin]
    MOV [enrolledincourserole,core],[enrolledincourserole,enrol_manual]
    MOV [enrolme,core],[enrolme,core_enrol]
    MOV [unenrol,core],[unenrol,core_enrol]
    MOV [unenrolme,core],[unenrolme,core_enrol]
    MOV [enrolmentnew,core],[enrolmentnew,core_enrol]
    MOV [enrolmentnewuser,core],[enrolmentnewuser,core_enrol]
    MOV [enrolments,core],[enrolments,core_enrol]
    MOV [enrolperiod,core],[enrolperiod,core_enrol]
    MOV [unenrolroleusers,core],[unenrolroleusers,core_enrol]
AMOS END

MDL-21655 big scary enrolment and roles improvements - see tacker for list of changes, includes other minor fixes too

MDL-21233 moodle_url improvemewnts, code simplification, more diagnostics; fixed several regressions

MDL-21198 $OUTPUT->single_button() resurrection, hopefully much easier to use than $OUTPUT->button(); fixed some regressions and code style improvements

MDL-20790 more page layouts -see base theme for full list; also added new css body class for describing current layout; base layout is now default for beter BC; require_login() now sets 'incourse' layout automatically

files MDL-20601 Conversion of many of the uses of print_textarea, and the mforms htmleditor to the new editor
Please forgive me if I have missed converting any output statements. If you do find an output statement that is not formatting correctly please refere to the table I added to this bug in regards to how it should be formatted.

course MDL-19794 Upgraded print_header and build_navigation calls to use PAGE and OUTPUT equivilants

This patch introduces two new blocks global_navigation_tree and settings_navigation_tree
both of which have been designed to make full use of the new navigation objects available through
the $PAGE object.
Bulk of this code is within lib/navigationlib.php

MDL-19794 upgraded calls to print_table, print_single_button, print_user_picture, print_container* and notice_yesno

category blocks MDL-19398 Set the proper context on the course category pages so blocks work properly

MDL-19976 Refactored select_menu() into select(), now supporting menu, radio and checkbox rendering. Added radio() and checkbox() functions.