=act #3725 Make FSMTimingSpec more robust.
!tes #3638 ImplicitSender and DefaultTimeout requires TestKitBase
=doc #3782 Make IODocSpec say what went wrong
=tes #3638 Testing DefaultTimeout trait
=doc #3763 add actor creation ordering guarantees
=pro Fix doc build of java only projects

* javadoc complains on the -target flag for projects with only java sources
* found solution here: https://groups.google.com/forum/#!topic/simple-build-tool/I75AODwFlH0
=doc Fix a few typos in docs
=pro Exclude osgi samples from zips, (fails, no content)
Merge pull request #1864 from akka/wip-creation-ordering-∂π

=doc #3763 add actor creation ordering guarantees
Merge pull request #1894 from akka/wip-doc-typos-patrikw

=doc Fix a few typos in docs
Merge pull request #1893 from akka/wip-doc-build-patriknw

=pro Fix doc build of java only projects
=per #3771 Snapshot file names are only read on system startup

- snapshot file names are no longer cached
- they are read on every load attempt on a per-processor basis
Merge pull request #1888 from archie/wip-3638-implicitsender-requires-testkitbase-archie

!tes #3638 ImplicitSender and DefaultTimeout requires TestKitBase
Merge pull request #1890 from krasserm/wip-3771-sync-snapshot-filenames-krasserm

=per #3771 Snapshot file names are only read on system startup
Merge pull request #1885 from akka/wip-3725-make-fsmtimingspec-more-robust-ban

=act #3725 Make FSMTimingSpec more robust.
Merge pull request #1895 from akka/wip-3782-make-iodocspec-say-what-went-wrong-ban

=doc #3782 Make IODocSpec say what went wrong
=pro #3759 Changed to using non-deprecated ScalaTest Matchers
=per #3797 Harden file deletions in persistence tests
Merge pull request #1896 from akka/wip-3759-stop-using-deprecated-scalatest-features-ban

=pro #3759 Changed to using non-deprecated ScalaTest Matchers
Merge pull request #1901 from akka/wip-3797-leveldb-test-cleanup-patriknw

=per #3797 Harden file deletions in persistence tests