Issue #1220602 by catch: Fixed Call to undefined function _update_7000_field_read_fields() during Forum update 7003.

Issue #943772 by jpsoto, yched, catch, bojanz, pillarsdotnet, steinmb: Fixed field_delete_field() and others fail for inactive fields.

Issue #1003308 by bfroehle: Fix upgrade path for Forum module by hard-coding vocabulary machine name (with tests).

#881530 by yhahn: Fix exportability of vocabularies by using machine names in taxonomy field's 'allowed values' setting.

- Patch #880132 by bojanz: hook_schema() doesn't support compound foreign keys; inconsistent implementations in core.

- Patch #821290 by marcingy, aspilicious, scor, catch, ronald_istos: unexpected error after disabling - unistalling - re-enabling forum module.

- Patch #613272 by Kevin Hankens, Dave Reid, yoroy, rgristroph, pcarman: forums not usable out-of-the-box: disabled comments, no forums.

#652372 by matason, ksenzee, naxoc, jpmckinney, sun: Don't allow users to add forum topics when no forums exist.

#628244 by catch, bangpound, and yched: Remove magic taxonomy field creation in favour of consistency.

- Patch #662322 by scor, andypost: remove the 'relations' column from taxonomy_schema(). It was already dropped in an update function.

- Patch #502190 by jhodgdon, stella, sun: hook implementation headers out of compliance with standards.

- Patch #470242 by yched, bjaspan: fixed namespacing for bundle names to avoid users rendering their site unusable.

#412518 by catch, bangpound, and yched: Convert taxonomy_node_* to field API (with upgrade path). Say buh-bye to old, crusty code.

- Patch #306151 by agentrickard, David_Rothstein, Dave Reid, dbabbage, moshe weitzman: automatically install/uninstall schema.

- Patch #547290 by David_Rothstein: corrected behavior of new forum topics, and properly delete an unused variable upon uninstallation.