Fix typo in JqEvent#isPropagationStopped

Fixes spelling and aligns JqEvent method name with jQuery event object method name.
allow dollar names for fields while parsing, but fail during typing (closes #1838)
reverse index features while typing, check during DCE
check for Array/Math specifically when checking features on JS
Merge pull request #2126 from duncanbeevers/development

Fix typo in JqEvent#isPropagationStopped
Allow Dispatch to be subclassed

Basically the macros only allow arguments of known types, either simple
types (String, Int, Float, Bool) or objects - the only allowed objects
were instances of sys.db.Object subclasses or haxe.web.Dispatch instances.

This patch also allows arguments that are a sub class of haxe.web.Dispatch.

It also makes redirect() public so that the Redirect exception can be
caught by a subclass
Merge pull request #2144 from jasononeil/feature/allowdispatchsubclass

Allow Dispatch to be subclassed
output which argument is being processed when an invalid class name is encountered (closes #2145)
fix bogus error message for enum constructors with argument errors (closes #2148)
fixed issue #2146
Merge branch 'development' of github.com:HaxeFoundation/haxe into development
optimized out (function()... == null) and != null (can occur when inlining optional methods)
check for casts of first argument to static extension (closes #2152)
Add basic docs to Binop and Unop
Merge pull request #2153 from dpeek/op-docs

Add basic docs to Binop and Unop
[java] Catch end of file on stdin
Merge pull request #2155 from jonasmalacofilho/development

[java] Catch end of file on stdin
Modify haxe.Int64.hx to work on php and fix other errors

- php integer overflow and ushr are incorrect (for 32-bits Int),
special functions now correct for these faults for Int64.
- both div and mod now have the sign correct when double-negative.
- special cases of div or mod by 0 or 1 now correct.
[java] Add @:keep to Resource.content; it was lost during DCE if only getString and getBytes were used
Add Hashes to stack frames