We should use the sbt version in project/build.properties rather than hardcoding.  This fixes
the wiring of sbt version through to the properties file generation.
Merge pull request #34 from sbt/wip/fix-sbt-version-properties

Sbt version should come from project/build.properties
Fixes #35 - Bump to sbt 0.12.4 for old versions.

Here we bump to sbt 0.12.4 when forking sbt so that the apply -cp
hooks are available.  For all projects used in activator, this is a
safe operation, and should remain so.
Updated sbt-atmos to 0.3.1

Brings in atmos 1.3.1
Merge pull request #37 from sbt/bump-to-sbt-atmos-0.3.1

Updated sbt-atmos to 0.3.1
Merge pull request #36 from sbt/wip-jsuereth-bump-to-0.12.4-when-needed

Fixes #35 - Bump to sbt 0.12.4 for old versions.
s/Builder/Activator/ in shim file comments
Merge pull request #38 from sbt/wip/havocp-fix-shim-comment

s/Builder/Activator/ in shim file comments
Don't write empty resources launcher property

sbt launcher seems to get cranky about empty properties.
Merge pull request #39 from sbt/wip/havocp-fix-bad-launcher-prop

Don't write empty resources launcher property
Fixes resolution issues finding sbt-atmos, so it's on the offline (fast) cache.

This should help speed up integration tests, and possibly remove errors in the
event of misconfigured resolvers...
Bump sbt-idea to 1.5.2 in (hopefully) all places.
Merge pull request #41 from sbt/wip/havocp-sbt-idea-1.5.2

Bump sbt-idea to 1.5.2 in (hopefully) all places.
Remove useless instantiations.
Add support for play 2.1.4+ drop support for play 2.1.3--.

* Bump the play shim plugin to make Play 2.1.x act like Play 2.2.0
* Add Play 2.2.0 probe features into sbt 0.12 probe.
* Create new test to ensure hooks work.
* Bump dependency of play shim to 2.1.5.
Merge pull request #40 from sbt/wip-jsuereth-ensure-offline-repo-works

Fixes resolution issues finding sbt-atmos, so it's on the offline (fast)...
Tweak comments.
Merge pull request #42 from sbt/wip-jsuereth-play-215-support

Support Play 2.1.4+.
Don't log NeedRebootException

We had to log it in akka 2.1 but 2.2 has a loggingEnabled=false flag.
Merge pull request #43 from sbt/wip/havocp-no-log-reboot

Don't log NeedRebootException