update README.md and sample project
http://googleappengine.blogspot.jp/2012/04/app-engine-165-released.html
https://developers.google.com/appengine/docs/java/config/appconfig#Using_Concurrent_Requests
Merge pull request #19 from xuwei-k/update-sample

update README.md and sample project
Hide dev server from OSX Dock. fixes #21
ls
added appcfg commands for manging backend instances
Added short description about backend commands
Merge pull request #23 from stephanos/master

Added appcfg commands for manging backend instances
0.5.0
notes
added lifecycle hooks for dev server (to execute some custom command on start/stop)
Merge pull request #25 from stephanos/master

Added lifecycle hooks for dev server
porting to sbt 0.13
merged
tweaking the key names for the hooks. #25
enhancer support. fixes #26
readme
object AppEngine
sbt 0.13 refactoring
0.6.0
sample