[BUGFIX] Don't create links from spacers
Merge pull request #645 from bjo3rnf/spacerballs

[BUGFIX] Don't create links from spacers
[TASK] Refactor reading of pid in AbstractContentViewHelper

Method has been created to make a uniform way of getting the currently configured or auto-detected PID value to use when reading content records.
[TASK] Remove double variable declaration

Cosmetic effect only.
[TASK] Ship XSD schema file
[BUGFIX] PageSelect root line cache key ignores reverse instruction
[TASK] Clean up logic of AbstractContentViewHelper
[BUGFIX] Incorrect use of grouping in content fetching

Symptom: renders only one content element from each column.
[TASK] Add missing attribute pageUid on page.menu.browse
[BUGFIX] Correct targetNamespace in XSD schema
[BUGFIX] Adapt to changed array indexes
Merge pull request #650 from bjo3rnf/charliebrowse

[BUGFIX] Adapt to changed array indexes
[FEATURE] Option on Content ViewHelpers to render section index

Only includes content elements which are indicated as "Include in section index" in content attributes.
[BUGFIX] Cleaner processing of menu titleFields
[TASK] Remove content-length header output in AssetService
[FEATURE] Add CollectionViewHelper

Use RecordCollection API to retrieve RecordCollection by uid.
Merge pull request #578 from dimaip/development

[FEATURE] Add CollectionViewHelper
[BUGFIX] Incorrect hooks used for uncached content replacement
[BUGFIX] Switch to cache insertion hook right before DB save

Previous hook was located immediately *after* saving cached page content.
[BUGFIX] Security ViewHelper - Add functionality for argument "frontendUsers"

The argument frontendUsers is ignored until this bugfix.
See: http://fluidtypo3.org/viewhelpers/vhs/master/Security/AllowViewHelper.html