* add clear method
* add method to return a copy of the values
* add missing `self` param to `values` argh
* add method `filter`
* impl len(M)
* allow filter()s to rewrite the value inside the dict
* capture `CGO_ENABLED` on sh init
Merge branch 'master' of github.com:DisposaBoy/GoSublime
* work-around iterator bs
* impl the minimal line/note functions