Added append slice method. Made convolute on third dimension. Changed
convolute to convolute2D.
Made the generate image data really 3D.
Activated the multiple files loading. Yet navigating with keyboard
shortcuts.
Moved position div handling to the info file.
No default slice, only full 3D coordinates.
Added handling of position.
Simplified slice handling. Added listener for position change.
Removed unused variable.
Fire a slice change event.
Using the generateAndDraw method as an event triggered method.
Removed temporary slice move via key event.
Added mouse wheel and two touch handling for slice move.
Fixed missing parenthesis.
Fixed the restore image method.
Merge remote-tracking branch 'origin/3-slices' into 3-slices
Merge pull request #42 from ivmartel/3-slices

Allow to loal multiple local files.