Less GC in RoboVM iOS backend. Will now use a single UITouch and a single UIAcceleration instead of creating new ones on each touch/acceleration event.
Added I18N support
Added a simple I18N test.
Button stays "pressed" when clicked "rapidly" in non-continuous rendering mode...
Calling Gdx.graphics.requestRendering() in a ClickListener doesn't solve the problem.
One might change the `visualPressedDuration` like this :

```
// hach for releasing the click in non continous rendering
ClickListener.visualPressedDuration = 0f;
```

but it's pain in the ass when switching from continuous to non continous rendering.
Removed previous implementation.
Added a simple I18N implementation.
Add to methods to get the max font size that ensure that n chars from a font fits entirely within a desired height and/or width.
Revert "Add to methods to get the max font size that ensure that n chars from a font fits entirely within a desired height and/or width."

This reverts commit 8b1ab483e26032b561e360598fc8280cd80e4f2f.
Add to methods to get the max font size that ensure that n chars from a font fits entirely within a desired height and/or width.
Merge pull request #1781 from avianey/master

Button stays "pressed" when clicked "rapidly" in non-continuous rendering
added FileHandle#list(FilenameFilter)
file() method instead of file variable
ordered imports
implemented AndroidFileHandle#list(FilenameFilter)
reordered imports
implemented GwtFileHandle#list(FilenameFilter)
added FileHandle#list(FileFilter) (+ Android and GWT backends), fixed FileHandle#list(FilenameFilter)
Emulate FileFilter
Added missing single quotes.
Added I18N support for GWT.