SRADA-758: Removed Mars dependency from Maven build

SRADA-758: Removed Mars dependency from Maven build

Now all bundle dependencies will reside in local p2-repository repackaged if
necessary into osgi-bundles to avoid packaging them inside plugins.

Creation of local p2-site can be done with p2-maven-plugin: mvn p2:site
It also automatically repackages all mentioned dependencies into osgi-bundles.

Additional artifacts can be published with FeaturesAndBundlesPublisher
application with '-append' option which was added in build.linux script to
publish all Eclipse dependencies and common-eplugin.

Eclipse Mars will be downloaded from 'advux_main' repository no matter which
repository user has specified to pkg-build tool.

Change-Id: Ib2463b512e85ea74895b6efff96713e73b7cd520