remove unneeded Relation#all from RepositoryDarcsTest
remove unneeded Relation#all from RepositoryCvsTest
remove unneeded Relation#all from RepositoryBazaarTest
remove unneeded Relation#all from Watcher#prune
Rails4: replace deprecated find_all_by_* at UserTest
Rails4: replace deprecated find_all_by_* at FieldFormat
remove unneeded Relation#all from Watcher#prune_single_user
code format cleanup Watcher model
backout r12562 : remove unneeded Relation#all from Repository::Mercurial#latest_changesets
backout r12540 : remove unneeded Relation#all from News#latest