Merge branch 'master' into help-text
Refactor parser to allow plugin extensions
Add help text feature flag
Move itemset parser extensions into itemset module
Consolidate <item> parsing logic
Move <repeat> parsing logic into group adaptor
Move read-only logic into control node adaptor
Merge pull request #284 from dimagi/model-repeat-parser-refactor

Model iteration parser refactor
Merge branch 'master' into help-text

Conflicts:
	src/parser.js
Require core before itemset
Add support for mug interaction with data tree writer
Allow mug to interact with control tree writer
Clean up label writing
Writer: moving code around

Move createOpenControlTag out of createControlBlock
Move mug-specific writer options into mug options
Refactor writer so Repeat is no longer special
Refactor writer so ReadOnly is no longer special
Merge branch 'model-repeat-writer-refactor' into help-text+model-repeat-writer-refactor

Conflicts:
	src/writer.js
Merge pull request #260 from dimagi/help-text

Help text
Merge pull request #287 from dimagi/fix-hq-integration

Require core before itemset