Post bbPress 2.0 API's and features

[johnjamesjacoby]

bbPress 2.0 brought with it a bunch of API's and features that BuddyPress sorely needs:

• Meta caps
• Moderation
• A robust options API
• Proper rewrite rules
• Theme compatibility

We should start slowly porting the most important API's over for 1.6, and finish them off in 1.7.

[johnjamesjacoby]

(In [5304]) Port caps and options API's from bbPress 2 to Core component. Files not included yet, and logic still needs to be built in. See #3739.

[johnjamesjacoby]

(In [5305]) Port user active/status functions from bbPress 2. Deprecate old _core_ functions into 1.6.php as wrappers. See #3739.

[johnjamesjacoby]

(In [5309]) bp-loader.php is a real boy! Introduce BuddyPress class to handle the loading of BuddyPress core and provide declarations to the $bp global variables. Ports several functions and methods from bbPress 2.0 into bp-core-update.php to manage the hand-off into the update routine. See #3739.

[johnjamesjacoby]

See #3740, #3741. Breaking ticket up into smaller bites.

[djpaul]

(In [5324]) Fix file include paths, a typo, and a PHP warning during new installs. See #3739

[boonebgorges]

I think we've ported as much as is reasonable for this dev cycle. I'll move this to Future Release so we can take a look at it early in the next cycle and start bringing over some of the stuff we've left out this time around.

[boonebgorges]

We've got individual tickets for most of these, so I'm closing this ticket as a dupe.