improve scaladoc
fix travis.yml. drop old scala versions and add 2.10.0
https://github.com/unfiltered/unfiltered/commit/7ff9bd53174eb8b1379225be7769d05418ed33b9#L0R33
Merge pull request #158 from xuwei-k/travis

fix travis.yml. drop old scala versions and add 2.10.0
Merge pull request #156 from xuwei-k/scaladoc-html-link

improve scaladoc
Add request headerNames iterator
Added specs2 support
Merge pull request #159 from dkristian/req-header-names

Add request headerNames iterator
Merge pull request #160 from hamnis/specs2

Added specs2 support
a more flexible ignore. fixes # 144
add back in json module now that lift has released theirs
Merge branch 'master' of github.com:unfiltered/unfiltered

Conflicts:
	project/build.scala
version bump
fix compile error in Scala 2.10.0
Merge pull request #161 from xuwei-k/fix-compile-error

fix compile error in Scala 2.10.0
recommend sbt 0.12
recommend sbt 0.12