including:
- add a link to the tutorial in the main readme page
- remove learning page on 'env', move content on reference page
- add dynamic sub components section in component page
- add reference page on props
- split qweb page into engine/language pages
- move t-key information into qweb language page
- add optional form for list props: ['optionalField?']
- accept undefined values for optional props
- allow declaring props with only boolean true
- throw error if extra prop is given to component
closes#223
This commit adds a static key 'dev' on QWeb (which acts as a central
point of access in owl internal code), and a 'mode' key on the value
exported by owl to let external code manipulate it.
closes#117