Wrapped the TimeoutException in the unchecked exception

Wrapped the TimeoutException of `Promise#get()` in the unchecked exception for timeout handling.
Add scala cross building to runtests script
Use sbt 0.13.5-RC1 in templates project
Include template tests in runtests script

Signed-off-by: Rich Dougherty <rich@rd.gen.nz>
Configure zentasks sample for less and coffeescript
Configure java/zentasks sample for less and coffeescript
Fix possibly null email field in java/zentasks sample
Configure scala/comet-live-monitoring for less and sbt-web
Removed references to ScalaToDoList tutorial
specs2 dependencies should be "test" scope
Fix typo in Heroku documentation
Merge pull request #2818 from OlivierBlanvillain/patch-1

Fix typo in Heroku documentation
Update js engine for longer timeout and improved logging
Merge pull request #2811 from xuwei-k/specs2-dependency-scope

specs2 dependencies should be "test" scope
Merge pull request #2804 from pvlugter/zentasks-assets

Configure zentasks sample for less and coffeescript
Trim surrounding whitespace from xml content
Extracted remaining WS Scala code samples
Merge pull request #2821 from pvlugter/xml-trim

Trim surrounding whitespace from xml content
Merge pull request #2809 from jroper/update-welcome

Removed references to ToDoList tutorials
Merge pull request #2823 from jroper/ws-code-snippets

Extracted remaining WS Scala code samples