Fixes #6012. Getting correct client IP behind proxy.
Merge pull request #6014 from sembrestels/systemlog-ip

Fixes #6012. Getting correct client IP behind proxy.
Fixes styles of group module header.
Improves inline event function docs
Adds deflate Apache filter to SVG images
Make sure Apache2 is configured so .ico can be cached
Improved activate/deactivate editor language
Merge pull request #6031 from mrclay/ht_svg

Adds deflate Apache filter to SVG images
Merge pull request #6032 from mrclay/ht_ico

Make sure Apache2 is configured so .ico can be cached
More semantic strings in ckeditor interface.
Merge pull request #6034 from sembrestels/patch-1

Improved activate/deactivate editor language
Merge pull request #6019 from juho-jaakkola/group_module_headers

Fixes styles of group module header.