WCM-14 Registration of the context in a WAB

If a WAB does not install PluginContextListener it does not get
registered in ServletContextPool. This prevents WebExtenderServlet to
properly dispatch requests to it.
WCM-14 (Optional) Added personal local repository to Ivy
WCM-14 Added test dependencies
WCM-14 Added target to convert POM to Ivy
WCM-14 Resolve dependencies transitively
WCM-14 Execute tests on plugin's dir instead of SDK's
WCM-14 Arquillian plugin deployer
Revert "WCM-1 Added bundle to BundleContextServlet"

This reverts commit 80810d523d98fac37cb07ba658be6995c672e45b.

We are taking a more elegant approach to achieve the same.
WCM-14 Make BundleServletContext implement BundleReference
WCM-14 Cleaned DeployerServlet:

* Uses BundleReference
* Waits for arquillian servlet registration
* Configuration parameters
WCM-14 DeployerServlet using active polling
WCM-14 Added test
WCM-14 Better error signaling
WCM-14 SF
WCM-14 IntelliJ files
WCM-14 add libraries
WCM-14 add information about testing to the readme
WCM-14 fix bundle obtention
WCM-7 change keys