PivotX Code

Fixing some randomly selected warnings.

Fixing some warnings - minor errors.

Fixing various coding warnings.

Leave bonusform parms intact while still not exporting it.
Replace extrafield key fixed string by something that is not similar to a date.
Correcting start defaulting to code that is downward compatible in PHP versions.

Revision 4434 to the branch.

preg_replace no longer supported with /e modifier. Replaced.

Improvements to Bolt docs.

Better default value for $efprefix and minor code clean-up.

Don't create serialized PHP arrays manually.

Exporting uri/slug for entries as post_name. (PivotX stores a slug/uri for entries even if mod_rewrite isn't used.)