[TASK] Fluid: Backported all changes from Fluid v5 again. This includes mostly some internal restructurings.
[!!!][TASK] Fluid (ViewHelpers): The <f:base> ViewHelper now creates a self-closing tag instead of an opening/closing tag. This is standards-conformant, but will BREAK IE6!!

[+BUGFIX] Fluid (ViewHelpers): Fixing potential XSS Attack if $TYPO3_CONF_VARS['SYS']['sitename'] contains malicious code. Resolves bug #12764 on bugs.typo3.org.

* ObjectAccessorPostProcessor again works now :-)

[!!!][+BUGFIX] Fluid (ViewHelpers): FIxed the Resource ViewHelper to be in sync with FLOW3 again. This means that instead of writing <f:uri.resource>...</f:uri.resource>, you write <f:uri.resource path="..." /> or {f:uri.resource(path:'...')}. Resolves #5237.

[+BUGFIX] Fluid (Core): Now, the inline notation also works if spaces are before and after ->. This makes it a lot more error-tolerant.
[~TASK] Fluid: Backported the recent changes in v5, which are some additional non-functional checks, a new exception hierarchy and updated comments.

[+FEATURE] Fluid (ViewHelpers): extended cObject viewhelper by an additional "data" argument. Now you can write {f:cObject(typoscriptObjectPath: 'lib.someCObject', data: someObject)} in your templates. This change is backwards compatible! Relates to #5150
[+FEATURE] Fluid (ViewHelpers): extended translate viewhelper by an additional "default" argument. Now you can write {f:translate(key: 'someLocallangKey', default: 'some fallback')} in your templates. This change is backwards compatible! Relates to #5150

[!!!][+FEATURE] Fluid: Strings inside Arrays and the inline notation are now parsed by Fluid as well. This enables things like {fullName: '{firstName} {lastName}'} - thus, everything can be nested inside arrays and the ViewHelper inline notation arguments. This is a breaking change in case you used literal {...} inside your arguments, but not else. Relates to #5118.
[+FEATURE] Fluid (ViewHelpers): extended format.date viewhelper by an additional "date" argument. Now you can write {f:format.date(date: 'yesterday')} in your templates. This change is backwards compatible! Relates to #5150
[+FEATURE] Fluid (ViewHelpers): extended if viewhelper by arguments "then" and "else". Now you can write {f:if(condition: 1, then: 'yes', else: 'no'} in your templates. This change is backwards compatible! Relates to #5150
[~TASK] Fluid (Core): added check for reserved keywords to TemplateVariableContainer. This relates to #5158
[~TASK] Fluid (Tests): moved and renamed VariableContainerTest
~TASK] Fluid (Core): Changed method names (handler_*) in TemplateParser, resolves #5135.
[~TASK] Fluid (Tests): Cleanup to comments and "framework code", resolves #5136.

[+FEATURE] Extbase (Utility): Localization Helper now supports sprintf format strings and an optional array argument. Most of this patch has been provided by Bastian. Relates to #4858. Resolves #5003
[+FEATURE] Fluid (Utility): Translation ViewHelper now supports sprintf format strings and an optional array argument. Relates to #5003
[~TASK] Viewhelpertest: Adjusted examples for f:translate. Relates to #5003

[+BUGFIX] Fluid (Core): Validation of ViewHelper arguments is non-mandatory now, as there is no validator for each domain object / we do not always want to call it. Resolves #5108.
[+BUGFIX] Fluid (Core): Shorthand Syntax of ViewHelpers can now use longer namespace prefixes than one character. Resolves #5107.

* Changed the fluid-specific RuntimeException to SPL's RuntimeException.

[~TASK] Fluid (ViewHelpers): Added some checks to make form view helper usable without the surrounding f:form tag. This resolves #3985 (backported from v5)

[+TASK] Fluid: added some standard tag attributes to link.email, link.action and link.external view helpers (backported from v5)

* ObjectAccessorNode now fails silently if no variable found

[!!!][+FEATURE] Fluid (Core): Removed the old Shorthand Syntax, and added a new chainable syntax for ViewHelpers. ADJUST YOUR TEMPLATES in case you use the {f:….()} syntax! Resolves #5033.
[+TASK] Fluid (Core): The object accessor node now uses FLOW3 reflection service instead of custom implementation. This should be functionally equivalent
[+TASK] Fluid: Improved doc comments
[+TASK] Fluid: Improved test cases by removing some not needed stub classes
[+TASK] Fluid (Core): added API annotations in AbstractViewHelper. TagBasedViewHelper

* Raised version to 0.9.10

[+BUGFIX] Fluid (ViewHelpers): Added check, if the given value implements the Iterator interface. This is important to allow objects like the Object Storage to be traversed.

[+FEATURE] tx_fluid (ViewHelpers): Prepared ViewHelpers for Request Hash (HMAC) generation. Relates to #4960.
[+FEATURE] tx_fluid (Core): Implemented editing of properties for nested objects in forms. Resolves #3702.
[+TASK] tx_fluid: Backported everything which results in comment-changes and some formatting changes.

[-TASK] Fluid (Core): Removed previous added registration of event handler attributes. Use "additionalAttributes" instead.

[~TASK] Fluid: Recreated ext_autoload.php.

[TASK] BlogExample: Adjusted TypoScript _LOCAL_LANG settings as needed in recent commit. Related to #4905.

[+BUGFIX] Fluid(ViewHelpers): Replaced calls to $GLOBALS['LANG'] by $GLOBAL['TSFE'] if $GLOBALS['LANG'] is not available. This fixes #4794