smalltalk.initialize official facade API in 'amber/helpers'
newWithValues: test refactored to use instanceof
newWithValues: refactored - use Object.create
Fixes shuffling extension methods part of st and js exports.
Helios references browser changes:

- adds Find Class command
- adds Browse method command
Fixes HLFindReferencesCommand when a Metaclass is selected
Better fonts for line numbers in CodeMirror
helios: adds focus shadow around buttons
Merge pull request #828 from herby/extensions-ordered

Fixes shuffling extension methods part of st and js exports.
Merge branch 'master' of github.com:amber-smalltalk/amber
re-commit all packages after changes in commit e18a70f
Merge pull request #827 from herby/newvalue-refactor

Newvalue refactor
'foo'->'namespace' in deprecation message
Merge pull request #826 from herby/init-api-in-helpers

smalltalk.initialize official facade API in 'amber/helpers'