cache.php

[backported] Fixes INP-1638 - Create intermediate class to access /system/config.php file

Conflicts:

• core/install/install_toolkit.php
• core/units/helpers/modules_helper.php

Bug #0001260: Broken URL Caching Mechanisms with Memcache disabled

1. serial requests not cached locally

INP-1030

Fixes #0001231: Bug in parallel cache rebuild protection

INP-1006

Bug #0001123: Parallel cache rebuild problem could cause high server load

1. don't perform empty (with no keys passed) multi_get request

2. store locally also missing variables, that are requested from cache (speed improvement)

3. fixed "scalar value can't be used as array" warning in getCache method

INP-919

Bug #0001123: Parallel cache rebuild problem could cause high server load

1. multiple "get" requests to caching engine combined into "multi_get" requests resulting less overhead on cache reading on each page load

INP-919

Fixes #0001176: Implement usage of Variables added on "System Configuration" step

1. removes memcache settings from db

INP-954

Bug #0000268: Code Cleanup in 5.2.x branch

1. fixed path to s.gif in FCKEditor file browse dialog

2. same kModulesHelper::getModules method is used during installation and in admin to get modules, that can be installed

3. fixed some PhpDoc comments, that were not matching their method declarations

4. moved duplicate request processing detection into Request class (from kApplication class)

5. replaced aliased function calls with original function calls

6. fixed some grammatical errors

7. most of file system interations (where folder is scanned for a specific content) are replaced with DirectoryIterator (from SPL)

8. removed duplicate tags from FckTagProcessor, since their copy from fckFCKHelper class was used

INP-224

Fixes #0000576: Separating Database Master/Slave Requests

INP-457

Merge of "in-portal/releases/5.1.3@14548" to "in-portal/branches/5.2.x@14575".

Fixes #0001123: Parallel cache rebuild problem could cause high server load

INP-919

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

INP-827

Bug #0000268: Code Cleanup in 5.2.x branch

Part 1 (see http://tracker.in-portal.org/view.php?id=268#bugnotes, bugnote 2970)

INP-224

Merge of "in-portal/releases/5.1.1@14072" to "in-portal/branches/5.2.x@13841".

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