build: sbt 0.13.1, scala 2.10.0, web-lift publishDefaults
core: variable rename
core: stylistic change
web: AppendToRender: don't crash if no body tag, just skip it
small touch ups

change a $ to JsExp
fix Valid#messages' message
make an import more explicit
web: Tests do not need mockweb
Factor out new subproject, reactive-web-lift (wip)
web: Remove a lot of unused lift-webkit imports
web: Finally eliminate dependency on lift-webkit, dependents moved to web-lift
core: logging improvements, move to own package
core: Timer: catch and log exceptions
dmeo: fix a link
Move ValidityCue to own file