build: update karma runner dependencies

A new stable version of karma runner was released 2 days ago and
we need to bump up its version to restore compatibility with all
the karma plugins, otheriwse fresh npm install is failing.
documents and reorganizes the compiler code - part 2

Closes #97
fix playground: correctly propagate JavaScript errors from compiled templates

Fixes #35

	Closes #96
fix: allow whitespaces before # template

Fixes #89

	Closes #93
fix: require rt only once in a compiled template

Fixes #85

	Closes #94
build: introduce jscs checks infrastructure

	Closes #99
add ace files as local dependencies

Closes #104
adds coverage reports

Closes #102
fixes #26

Closes #103