Merge 'pod_fixes' into 'trunk'

Merge 'pod_fixes' into 'trunk'

r8422@Thesaurus (orig r8409):  ribasushi | 2010-01-22 11:14:57 +0100
Branches for some stuff
r8477@Thesaurus (orig r8464):  ribasushi | 2010-01-28 12:26:40 +0100
RT#52681
r8478@Thesaurus (orig r8465):  ribasushi | 2010-01-28 12:41:25 +0100
Deprecate IC::File
r8479@Thesaurus (orig r8466):  ribasushi | 2010-01-28 12:41:56 +0100
Deprecate IC::File(2)
r8487@Thesaurus (orig r8474):  ribasushi | 2010-01-30 13:11:18 +0100
Draft PK explanation
r8488@Thesaurus (orig r8475):  frew | 2010-01-30 21:19:30 +0100
clarify PK stuff in intro just a bit
r8489@Thesaurus (orig r8476):  frew | 2010-01-30 21:24:21 +0100
no first in POD
r8910@Thesaurus (orig r8897):  rabbit | 2010-03-06 11:37:12 +0100
Improve POD about PKs and why they matter
r8912@Thesaurus (orig r8899):  rabbit | 2010-03-06 11:42:41 +0100
One more PODlink
r8915@Thesaurus (orig r8902):  rabbit | 2010-03-06 12:27:29 +0100
Fully deprecate IC::File