themes_theme.php

1. Fixes #0000710: Check all Sub-Item Edit templates and place Prev/Next buttons on them

2. Commit on behalf of Dmitry

INP-561

Releasing version 'branches/5.2.x' (copy from 'branches/5.1.x') of 'in-portal' module.

Releasing version 'releases/5.0.2' (copy from 'branches/5.0.x') of 'in-portal' module.

Reintegrate merge of "in-portal/releases/5.0.1@12617" to "in-portal/branches/5.1.x@12453".

1. Bug #0000194: Minor changes

2. Made "Themes" menu visible when DBG is On.

MCUS-3

1. Bug #0000265: Update Icons in Admin

2. Add "Width" to columns

3. Minor Cosmetic fixes

INP-222

1. Bug #0000159: Prevent of Execution of System Files of files other, then "index.php" and "admin/index.php"

2. Adding DEFINED FULL_PATH security-check

INP-129

Fixes #0000199: Create a Switch between "Site Configs"

INP-161