Gruntfile: target naming, cleaning
Fix: Array new: x -> Array with: x.
Compiler: lfs inserted in context output

... to make start context / end context lines matching
and easier for stripper to locate them.safely.

Also, semicolon added after return statement.
Recompile.
README: add devDepedencies badge
extra comma removed

grunt jshint:grunt is now happy
upgrade devDependencies
config.js regenerated using amber-dev 0.2.0
pragma for excluding contexts

plus hackish fix of 'return self' not ended by semicolon and lf
pragma for excluding ide data
pragma for excluding contexts - add sendIdx
pragma for excluding contexts - add supersend
Recompile
fixed dangling commas
Merge pull request #1084 from herby/stripping-pragmas

Stripping pragmas
Merge branch 'master' into 0.13-prereleases
Prelease 0.13.0-alpha.4.