Ensure we use our references to certain native or upstream methods

Checked:
 ve.cloneObject       (oo|OO).cloneObject
 ve.getObjectValues   (oo|OO).getObjectValues
 ve.getObjectKeys     Object.keys
 ve.compare           (oo|OO).compare
 ve.copy              (oo|OO).copy
 ve.isPlainObject     ($|jQuery).isPlainObject
 ve.isEmptyObject     ($|jQuery).isEmptyObject
 ve.isArray           Array.isArray
 ve.bind              ($|jQuery).proxy
 ve.indexOf           ($|jQuery).inArray
 ve.extendObject      ($|jQuery).extend

Fixed:
* ve.dm.MWBlockImageNode.js (added in Iebb2081de)
* ve.dm.MWInlineImageNode.js (aded in I62ec12a6b)
* ve.dm.MWConverter.test.js (added in I90273786a)
* ve.ui.MWMediaInsertDialog.js (added in Ia5ad9a8c0)
* ve.dm.MWTemplateSpecModel.js (added in Ic3eb66538)
* ve.init.mw.MobileViewTarget.js
* ve.init.mw.ViewPageTarget.js
* ve.init.mw.Target.js

Skipped:
* ve.init.mw.ViewPageTarget.init.js
  - Feature test (which is for the very references from ve.js
    being ensured in this commit).
  - Misc code using $.inArray (can't use ve.js yet since that
    isn't loaded yet there).

Change-Id: I73ae005d3692e871fdcaea938641558c0b98ec69
Merge "Ensure we use our references to certain native or upstream methods"