Merge pull request #32 from laurentvdl/master

Bundle start / void description
Merge pull request #36 from laurentvdl/master

Test if base folder exists.
Unified package config syntax. Partial solution for #34.
Configuration for packages scanned from the web application libraries now also allows for a version.
Simplified system package config. Issue #34
Control Panel now shows system packages for Framework bundle.
Fixed some typos.
Fixes #35
Dynamic Extensions application context is now a child of the Alfresco application context.
Having direct access to the Alfresco beans lets Dynamic Extension bundles use Spring XML configuration that is identical to that for regular Alfresco extensions.
This change is backwards-compatible.
Using the Alfresco context as parent, causes clasloader errors on bundle refresh.