Added a note about installing qt on Mac.
Updated Japanese translation
Initialize some members in the constructor

Makes cppcheck happier, and is a good idea anyway.
Updated Chinese translation
Removed debug output from the staggered renderer
Updated Brazilian Portuguese translation
Updated Hebrew translation
Update Czech translation
Added Transifex configuration
Fixed possible crash in TileDelegate

This crash is not possible to trigger when using the UI to add tilesets,
but by editing the map or tileset file you can set up tilesets that
have a tile count that is not divisible by the column count. The
TileDelegate was not dealing correctly with table cells for which no tile
exists.
Removed ability to change terrain through the TilesetModel

It is no longer used and would not handle undo correctly.
Remember the size and position for some dialogs

Some dialogs were excluded from this behavior because they were either
not resizable or because it's probably better for them to always pop up
in the center (like Preferences, New Map and New Tileset).

Unfortunately for some window managers this behavior is broken and I
don't know of a good way to fix that. On Xfce for example, the dialogs
will move down by the height of their title bar each time they are
opened.

Closes #339
Fixed deletion of tilesets that are shared with open maps

When opening a map with external tilesets, it will share those external
tilesets when they are the same as those used in already open maps. When
some error is encountered while opening such a map, these shared tilesets
should not be deleted.

This patch makes sure that the map reader will only delete the tilesets
that it created itself while loading a map.

Fixes #312
Updated NEWS file
Tweaked the default window layout

* Mini-map is now tabbed beneath the Layers dock
* History and Maps docks moved to the right and are hidden by default
* Default window size was increased from 800x600 to 1000x700
Flareplugin: initialize number base to 10 when reading maps.

The default of flare maps is 10.

This commit removes the compiler warning:
..\..\..\..\tiled\src\plugins\flare\flareplugin.cpp:170:60:
warning: 'base' may be used uninitialized in this function
[-Wmaybe-uninitialized]
Removed an unnecessary separator in the tileset dock
Fixed Object Properties dialog not remembering its size

It was always resizing itself to its preferred size, so the mechanism
implemented in 28ea563 was not working for this dialog.

Fixes #339
Open Object Properties dialog when double clicking on object

Closes #300
Export/Import map background color to/from JSON