Fractal explorer Files

Change log:

 = FractalExplorer 0.7 beta =
 - added russian translation
 - bookmarks are deleted on Del and activated on Return
 - fixed bug when maxDepth was sent to client two times in a row

 = FractalExplorer 0.62 beta =
 - fixed client freezing during intense task assignment/cancellation
 - navigation panel now displays all digits up to precision limit
 - nice checked background
 - current computer name is now displayed in clients' table
 - maxDepth apply button removed
 - fixed some bugs in navigation panel
 - fixed crush when client is closed during computing
 - fixed bug with image files not being written properly
 - fixed bookmarks list distortion
 - fixed image creation with multiple clients
 - fixed bug when exact rendering failed at about 10^40

 = FractalExplorer 0.61 beta =
 - 64bit build (Yay!)
 - automatic performance check for connecting clients
 - now performance check is always performed on the same material
 - one cannot refresh until there are connected clients
 - some ui changes

 = FractalExplorer 0.6 beta =
 Major features implemented:
 - mandelbrot fractal
 - computing over network with multiple clients
 - client performance rating
 - multi-threaded rendering
 - exact and approximate rendering
 - save image
 - bookmarks
 - navigation panel
 - pan & zoom with mouse