Begin 3.2.0-SNAPSHOT
Vastly improve JValue's "dynamic"

..but it's not binary compatible, so call it "dyn" and @deprecate
"dynamic".
Fix docs
Improve dynamic errors some more
Merge branch '3.1'

Conflicts:
	README.markdown
	build.sbt
	src/main/scala/com/rojoma/json/v3/ast/ast.scala
	src/main/scala/com/rojoma/json/v3/dynamic/DynamicJValue.scala
Malformed interpolations would throw NotImplementedException in 2.10
Remove unnecessary macro compat code
Build with 2.11.2
3.1.2

The lines of development got a little muddied.  Will have to be better
about that in the future.