#120: Documentation update for for-in loops

Closes #115: Documentation update for async(false)

Closes #114: Fix compile time detection of invalid conversion between…

… string and number when string is a const value

Closes #113: Support 'final' fields and variables and add some optimi…

…sations

Bump version

Closes #105: Fix handling of engine/global bindings for JSR 223 support

Closes #104: Adds support for Invocable/Compilable interfaces to Scri…

…ptEngine JSR223 support

Bumped version to 2.5.0

Closes #98: Changed JactlClassLoader to load classes that are Jactl c…

…lasses rather than delegating to parent class loader

Updated to support building release files