Handle OpenID errors for POST requests.

ECOM-441
Enable parent/child tests using the acid XBlock.

Also fix those tests to correctly wait until the ajax portions have
finished before evaluating the page contents.
Add block.name to xblock javascript frontend
Add block type to the available attributes in the xblock javascript frontend
Set xmodule_runtime on all XModule-like things (including pure XBlocks using the XModuleMixin)

Expose xmodule_runtime as .runtime if it's set (otherwise, fall back to
the supplied runtime). This causes all blocks to act like XModules when
they have a ModuleSystem, and like XModuleDescriptors if they only have
a DescriptorSystem.
Escape xblock wrapper data attributes and css classes for safe html
Merge pull request #5594 from edx/diana/open-id-bug

Handle OpenID errors for POST requests.
Merge pull request #5590 from cpennington/xblocks-with-children

Enable pure XBlocks to use children in edx-platform
add Solano CI.
Merge PR#3. Solano: Add post worker hook for copying artifacts.
fixed capturing screenshots
adding post worker script
fixing file log error
introduce bok-choy shards, new firefox version
re-shard lms to fix a failing test.
Add quality report capability.
Merge Coverage Reports
TE-465
Upgrade to mongo 2.6.4
Publish datadog stats for build
TE-453