JetCoreEnvironment encapsulates a project (in the IDEA sense), so the classpath and sources lie in its area of responsibility

Changed description from "Valid escape in string" to "Valid escape in string and template braces". Added string escape to sample.

Changed highlighting for extension properties and functions, so extension members will be highlighted differently depending on their container (instance or namespace).

Fixed highlighting of closure arrow in color settings, renamed corresponding property and expanded sample.

moved runnable{ ...} to the kotlin package where it belongs as it makes a standard java.lang functional interface

mvn --debug prints compiler arguments

added a start of a work around for KT-1752 not being implemented yet so folks can write nicer swing programs

as requested by http://confluence.jetbrains.net/display/JET/Code+Conventions+for+Java

(sed is your friend)

also use constant field instead of hardcoded literal in tests

* add assertion
* fix tests
* #KT-1748 Fixed