Merge pull request #58 from kylecannon/master

Better Installation Instructions, Modman Support, Branch Alias, cli improvements and layout directory changes.
Require v0.2.2 Vehicle-Fits-Core
Refactor tests, classes and methods and configuration options to toggle modules.

* Configuration option is now available under modulestatus that have the
* options to enable/disable Vafwheel, Vaftire and Vafwheeladapter. This can
* save loading time if the modules are not required for some Magento E-commerce
* stores.
* Extended the VF_TestCase up to Elite_TestCase and moved needed Magento test
* case methods to Elite_TestCase where they belong.
* Extended VF_AbstractSingleton to Elite_Vaf_Singleton for the logic of finding
* if a module should be enabled/disabled based on the configuration option in
* config.ini/config.default.ini
* Elite_Vaf_Singleton extends the parent method flexibleSearch() and adds
* needed logic to call the needed Vafwheel/Vaftire/Vafwheeladapter modules to
* extend functionality of the enabled modules. If the module is enabled in the
* configuration but it cannot be found in the ELITE_PATH, an exception is
* thrown at runtime.
* Elite_Vaf_Singleton extends ensureDefaultSectionsExist and adds a call to
* ensure that the new configuration option called modulestatus exists as a
* section.
* Elite_TestCase over VF_TestCase for using the correct methods for the Magento
* Test Suite.
* Bumped module versions to v2.1-build1 and modified composers branch-alias to
* 2.1.x-dev