upgrade_helper.php

Fixes INP-1577 - CS fix all variable type comment

Differential Revision: http://qa.in-portal.org/D240

Bug #0000268: Code Cleanup in 5.2.x branch

1. removing references ("&") in code (makeClass & recallObject methods)

INP-224

Bug #0000268: Code Cleanup in 5.2.x branch

1. removing duplicate code

2. fixing incorrect extended method declarations

3. moving permission checks from all csv import/export events into central place

4. csv helper wasn't processing missing column "title" attributes during export

INP-224

Bug #0001025: Automatically set "svn:keywords" property to PHP files

INP-827

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

Fixes #0000779: Upgrade from 4.3.9 to 5.1.0-RC1 of In-Portal fails

INP-619