Replace jquery smart autocomplete with a more robust solution

[tvoliter]

See todo in QuickFileOpen.js

Currently jquery smart autocomplete (http://laktek.com/2011/03/03/introducing-jquery-smart-autocomplete/) is used as an auto suggest list in Brackets. While this mostly works for QuickFileOpen there are some limitations so it's likely we will want to replace this component with a more robust solution when our need for an auto complete component grows.

Issues with jquery smart autocomplete

• only accepts an array of strings. A list of objects is preferred to avoid some work arounds to display
  both the path and filename.
• the popup position logic has flaws that require css work-arounds
• the popup properties cannot be modified once the object is constructed

[jlondon]

This is already document in the code so closing.

[peterflynn]

Only 3 years later, this has now been done ;-) The new Quick Open dropdown implementation will ship in 1.3