support keywords storage
deprecate getNotNullHelper
reduce getNotNullHelper usage
SASS: make declaration block lazy
Prepare css module for upsource: move indent parsers to core-impl
Extract common used WhitespaceBinders
test fix: explicit encoding is required
WEB-6700 TODOs not recognized on multiple level language template
WEB-849 "Comment with line comment" on empty line in <script> block generates HTML instead of JS comment
more compact todo storage (since we advanced the version anyway)