Merge pull request #93 from TOGoS/master

Allow NBTDump to read from region files.
Improved test renderer

- The user can now specify block to be rendered on the command-line
Removed obsolete field
Removed unused import
Altered default test renderer camera
Updated test script
Fixed line endings
Handle metadata in test renderer
Ctrl+W closes the 3D view
Test renderer can now render to file
Added block rendering script
Updated ChangeLog
Renamed method
Altered FoV value clamping

It is now possible to increase FoV without limit using the scroll wheel in
parallel projection mode.
Increased maximum FoV to 175
Display raw pitch values
Added isometric view button
Skybox buttons update sliders and text fields
Added buttons for quick isometric camera setup
Improved camera controls in parallel projection mode