Add support for TYPO3 6.2 and drop support for all other version below

* Introduce namespaces
* Adjust doc comments
* Remove closing php tag
* Fix typo
* Remove the legacy Dispatcher interface

close #18
close #47
Add support for TYPO3 6.2 and drop support for all other version below

* Introduce namespaces
* Adjust doc comments
* Remove closing php tag
* Fix typo
* Remove the legacy Dispatcher interface

close #18
close #47
[WIP] Make the ExtensionAPI compatible to TYPO3 CMS 6.2
* updateList
* fetch
* listMirrors
* import
* add Unit Tests
* vfsStream is necessary for Unit Tests. But we don't add this as a dependency to the extension. Instead we use the one which is defined in cores composer file. For installation copy the composer.json from the core package to your webroot and execute `composer install`. This will install some dependencies into Packages/Libraries.
* Add Travis CI configuration file and status image
* Add Scrutinizer configuration and status images
* Update README.md

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Merge branch 'feature/MakeExtensionApiCompatibleTo62' into develop

Conflicts:
	Classes/Command/CacheApiCommandController.php
	Classes/Command/ExtensionApiCommandController.php
	Classes/Command/SiteApiCommandController.php
	Classes/Service/CacheApiService.php
	Classes/Service/DatabaseApiService.php
	Classes/Service/ExtensionApiService.php
	Classes/Service/SiteApiService.php
	ext_autoload.php
Raise the version number
Merge branch 'release/1.0.0-beta'