Fixes iOS resize flicker, jQuery mobile pagechange issue, less than one column bug, and jshint

[pandaiolo]

Here are the two issues fixed in this pull request, along with small fixes by jshint:

• iOS resize event beeing fired a lot on scroll behaviour
  Grid-A-Licious would flicker / scroll to top every few seconds. I added a check on the width to trigger redraw only if the width actualy changes.
• jQuery Mobile page transition
  width would be equal to zero upon page change in jQuery mobile, which would need to trigger Grid-A-Licious later (w/ visible flicker). Instead I changed the way width is calculated, by switching the display css value to block while getting the good value.

Notes:

• Also included @falconwhite pull, with a Math.max instead of the if
• Applied jshint fixes
• minified file is up to date

(I did not included the older pull, as it's more than just bugfixing)

[connor]

This looks good to me! @suprb what do you think?

[someok]

yeah, it work fine, 3kx