Merge pull request #68 from Polymer/master

5/14 master -> stable
Merge pull request #69 from Polymer/master

5/15 master -> stable
template ref should check treeScope.getElementById

R=arv
BUG=

Review URL: https://codereview.appspot.com/9519043
Revert "template ref should check treeScope.getElementById"

Accidentally committed to stable rather than master.

This reverts commit 7d8ad995d62a088c63c2e12f3488a45b103cfb85.
Update sample.html

close body tag
Merge pull request #93 from shycherry/patch-1

Update sample.html. Thank you!
Fixed the 'A Custom Syntax API' link in the main readme.
Merge pull request #102 from gunn/patch-1

Fixed the 'A Custom Syntax API' link in the main readme. Thank!
Ensure model is passed with <template if>

R=arv
BUG=

Review URL: https://codereview.appspot.com/10255050
Re-fix <template if>, added test for <template repeat if>

R=arv
BUG=

Review URL: https://codereview.appspot.com/10290043
Update expression_syntax.md
Use parser to check for native template

R=arv

Review URL: https://codereview.appspot.com/10292043
add utils/ to karma config
Revert "Use parser to check for native template"

This reverts commit 1c8527d92ac35b7c7b926fc9e86e3a983594dc7f.
Merge pull request #106 from Polymer/master

6/17 master -> stable
fix parsing of semantic template interation w/ shadowdom polyfill

R=arv
BUG=

Review URL: https://codereview.appspot.com/10348043
remove esprima export boilerplate

R=arv
BUG=

Review URL: https://codereview.appspot.com/10361043
Ensure getInstanceModel is only called when a new instance will be created

Note that this also allows for the common case of inserting an instance via a DocumentFragment. Only if there is a instanceCache hit, do we insert an array of nodes.

R=arv
BUG=

Review URL: https://codereview.appspot.com/10361044
Actually, this is fixing examples for browsers without <template> and Object.observe.

Many were suffering from: https://github.com/Polymer/mdv/issues/64 and also lack of calls to Platform.performMicrotaskCheckpoint().

Also, the twitter rest API 1.0 is now gone and the 1.1 API requires auth, so I removed the example for now.

R=arv
BUG=

Review URL: https://codereview.appspot.com/10383044
cleanup after howto fix