Added OSGi compilant manifests generation.

Added Maven Bundlor plugin used to generate MANIFEST.MF files. (see
http://www.eclipse.org/virgo/documentation/bundlor-documentation-1.1.2.RELEASE/docs/user-guide/html/ch02s03.html).
Each project has a template.mf file in its root directory, which specifies OSGi bundle symbolic name and required package imports.
For projects that support testing, Bundlor is disabled and default MANIFEST.MF is generated.
In main POM added property (osgi.bundles.version) with version of Togglz used in manifests (without '-SNAPSHOT' suffix).