Merge pull request #248 from jonschlinkert/master

0.4.2
build before merging nested layouts
updating `title` to `name` for collections
building
Merge pull request #255 from doowb/master

Changing `title` to `name` for collections
setting up ability to omit options properties when extending the context. adding a few properties to be omitted
Merge pull request #257 from doowb/omit-properties

Omit Properties
minor edits, clean up formatting
add assemble-internal
much needed readme update
0.4.3