moved FileApi into DirectoryServerV2 namespace

Change-Id: I18adc6cb34257efa125d2104b7d830736f025766
renamed FileApi to InstancePaths

Change-Id: I647e1cdd2f025e9435ec593743e47682b2a4862e
renamed FileApi to InstancePaths

Change-Id: I67f79f20b96440b0e54beb7c079fb16affa2af98
Revert "Remove legacy directory server"

This reverts commit 5c6306cdd3a7f5b9e14415a62aa34ff2584b955d.

Conflicts:

	lib/dea/bootstrap.rb
	spec/support/bootstrap_setup.rb

Change-Id: Ib7a2e3079bda612bfef3f339dd0776906d731e60