feat(layout): add new layout system
docs(layout): document new layout options
chore(): cleanup breaking.md
update(docs): update to useful links.
update(docs): fixed layout attribute

Close #676. Thx @mighe
update(docs): improved button jsdocs

Close #675. Thx @SanderElias.
update(docs): remove typo
update(docs): publish link to ngMaterial forum
docs(layout): document increments of 5 on flex breakpoints
chore(build): only minify when needed, add banner to themes
fix(layout): updates layout attributes in index template
fix(docs): improve responsive docs
fix(docs): fix error in flex docs
Updated Changelog with 0.6.0 details
Updated Changelog with 0.6.0 details
Updated Changelog with 0.6.0 details
Updated Changelog with 0.6.0 details
Merge pull request #2 from angular/master

Update