Revert "preparing for 3.0.0 release"

This reverts commit ab275b9119eeab3e3c5b65837fd821f3605b980c.
Revert "ignoring ext_mem files"

This reverts commit f1a116499c187af450adf632714307fabb1739ce.
Revert "bugfix: fixing dirs"

This reverts commit f473f61786b6aa5be3360f650b2fd61caed16641.
Revert "preparing for 2.2.1 release"

This reverts commit 0cb6f25583f7dd4f7da8795c109cb6377941e8a1.
Revert "removed unused files"

This reverts commit d858b71b75ce6e9fc23cc71b8be321d64e9113e9.
Revert "new structure"

This reverts commit 3beaf45544057226d70a700f2317b198acb5cfe1.
Revert "releasing 2.2.0"

This reverts commit 59dcf44aae059fac501a84f9f9527ba88b0dce6e.
Revert "version 2.2.0"

This reverts commit c336eaae791d9904302568d7689427ea0f4839c2.
Revert "new boot constants"

This reverts commit 96dcad1dcbbc82e85df04d206888e17ef5821b43.
moving to tangra3