Update README.md

set status image brach=devel
new method getAllCollections added
Merge pull request #54 from luebbert42/devel

new method getAllCollections added
Moved spl_autoload_register to init() of the autoloader.
Merge pull request #57 from F21/devel

Moved spl_autoload_register to init() of the autoloader.
Updated README to include example of invoking the autoloader directly
Merge pull request #58 from F21/devel

Updated README to include example of invoking the autoloader directly
timeout exception for issue #55
increased timeout for issue #55
Added support for instantiating graphs by passing in a graph name
directly to the constructor.
Formatting
Fixed test.
Added getGraph() support to the graph handler.
Formatting.
Merge pull request #63 from F21/devel

  Added support for instantiating graphs by passing in a graph name to the constructor. Additionally added getGraph() support to the graph handler.
Updated DocumentHandler to include a convinence function store() that
aliases add()/save() and replace().
Formatting.
Fixed php doc for store().
Fixed test assertion message.
Merge pull request #67 from F21/devel

Updated DocumentHandler to include a convinence function store() that aliases add()/save() and replace().