build: Update jscs and jshint config

jshint:
* Remove coding style option "curly" (already covered by jscs).
  Follows-up 149bec2 which added jscs/requireCurlyBraces.

jscs:
* Remove rule for "disallowRightStickedOperators"
  The disallowRightStickedOperators rule is obsolete with
  requireSpace{Before,After}BinaryOperators and fixes a bug where
  the following would be considered invalid when it shouldn't:

      +!!constructor.static.matchFunction
      // Operator + should not stick to following expression

   This is a false positive due to the tricky nature of
   disallowRightStickedOperators and for that reason this rule
   has been deprecated and scheduled for removal in jscs 2.0.0

Change-Id: Ib731f11b1184d0e9865104a065421446a78dbfec