Updates to README for docs
string mismatch
convert to new loader
update tools; modify custom-elements.js for latest loader
fix 'flags' scope
fix flag scoping for builds
More README work for docs
support 'constructor' attribute
Merge branch 'master' of https://github.com/toolkitchen/CustomElements
remove double slash from path to loader.js
remove extra slash
Merge branch 'master' of https://github.com/toolkitchen/CustomElements
add source map to executed scripts to facilitate debugging.
Merge branch 'stable'
Merge pull request #18 from toolkitchen/master

4/17 master -> stable