Remove cross-build configuration from build.sbt.

If sbt-native-packager only supports SBT 0.13+, then scala 2.10
is the required version for the API.
Merge pull request #305 from fiadliel/wip/remove-scala-292

Remove cross-build configuration from build.sbt.
FIX #217 Introduced executableScriptName setting
Adding docs
Merge branch 'master' into fix/bash-batfile-name
Upgrade to jdeb 1.3 to stop old version of slf4j from being pulled in
Merge pull request #307 from benmccann/jdeb-1.3

Upgrade to jdeb 1.3 to stop old version of slf4j from being pulled in
Adding docker tests to release script
Adding new release
FIX #304 adding requirements for debian packaging
No need for import
Merge pull request #315 from jaceklaskowski/docs-readme

No need for import
flag to update latest tag
added cli option to set a custom mainclass
added usage info for the custom mainclass option
maintiner should be in Docker or Dockerfile will write an empty value 

... and fail pre build validation.
Merge pull request #308 from sbt/wip/adding-docker-to-release-script

Adding docker tests to release script
Merge pull request #311 from sbt/docs/debian-changes

FIX #304 adding requirements for debian packaging
Merge pull request #321 from treyhyde/master

maintainer should be in Docker or Dockerfile will write an empty value
FIX #322 adding permissions to jdeb packaging