Fixes issue #3
Adds a quick-n-dirty take picture functionality to key F8
Support for unicode variable and function names.
Readds support for underscore in identifiers
Adds package.json so that npm can install all dependencies needed by tools. Usage: npm install.
Makes tools/buils.js a runnable bash-script. Needs execution rights.
Merge branch 'master' into runtime

Conflicts:
	runtime/index.html
	runtime/input.js
Fixes clear not working properly
Adds window and screen size functions.