Shrimp Shader Generator FLTK2 GUI (SVN)

Updated Entropy definitions to include more display types.

Added an envlatl low dynamic range version of a Paul Debevec's HDR map (beach) - from www.debevec.org. This should be copied to $HOME/.shrimp/temp/ as of when shrimp runs for the 1st time, to be accessed by all examples.

Added cracked glazed clay example. Note: it uses an environment map that should be included in Shrimp. When it first runs, should be copied to $HOME/.shrimp/temp/ to be accessed by all examples. Going to commit this file to shrimp/examples/ as well.

Experimental colour chooser for input edition dialog

Updated string blocks for uniform storage.

Fixed connection behaviour (a new click doesn't change connection start) and right click cancels connection

Pad popup menu doesn't show anymore when it's empty

Updated the wood example again, using Stanford Bunny.

Had to change the wood block and rhomb tiling/painting, Aqsis & Pixie don't like binary evaluation (rhomb tiling/painting), and Aqsis was protesting a lot with the wood2 function.

Updated the wood example to use a Paul Debevec environment map (converted to LDR and envlatl, from a HDR lightprobe - www.debevec.org), that should be placed in $HOME/.shrimp/temp, or $SHRIMP_TEMPDIR if we define it.