handlebars: fix Property tests
handlebars: update tokenizer spec tests

Bring HbTokenizerSpecTest back in sync with Handlebars tokenizer spec
tests ('spec/tokenizer.js')
handlebars: add support for subexpressions

See https://github.com/wycats/handlebars.js/commit/b09333db7946d20ba7dbc6d32d5496ab8295b8e1
handlebars: fix error message typo
notnull
WEB-12609 "New Dart File" context menu defaults to class, which is unusual for Dart
remove font settings from inspection descriptions/devkit template

(cherry picked from commit 5a68989e8659940cc7894c15af943783f47bbf72)
remove font settings from inspection descriptions

(cherry picked from commit b40fb6352c8972725388b9f9ba1dc4ba98521b6a)
merge unused declaration and unused symbol inspections
Cucumber test for "create step" fixed
resolve polymer tags in dart
#WEB-7740 fixed
override default file references in dart project
#WEB-13522 fixed
fix completion for dart references
DartResolver.resolveSimpleReference() is @NotNull (part or WEB-11612 fixed)
EA-61566 (CME during Dart cmd line debugger resume)
WEB-13756 Dart local imports are not resolved if project folder has spaces in path
WEB-11612 Dart import quickfix does not work if there are other imports
StrutsConventionImplicitUsageProviderTest -> Java
StrutsStructureViewTest -> Java
ValidationStructureViewTest -> Java