Some scripts fixed for 2.7 and 2.8

Here are some scripts from my scripts directory, which happened to be fixed for 2.8, either because I needed them or out of curiosity. They may be backward incompatible with 2.6. If I did the work before the authors, they can receive their good back here. I updated this package on 2012/09/09, adding some other great scripts I use daily.
The Orton Effect is a combination of Orton Effect by Julia Jomantaite and other Orton effect scripts - with changes of my own. JP-Borders was written by J-P Sutto and me. Tuxcomputers split-tone with edge detection can do a classical split tone easily configurable or, if "Edge Detection" is checked, a different but very interesting effect.

I did not modify "my" version of Serge Mankovski's B/W Film Simulation, with a new option, "Add grain", which calls "my" version of Elsamuko grain (I hope you'll forgive me, Elsamuko, for having snooped your code and added some options I needed), and will not work with the original script except if you modify 19 lines :(( But maybe the grain is too big for some "simulations" of high speed films.

blur-border
BW-Film-Simulation-2.0
CarTOONize_2
color-booster
Darla-PurpleFringe
diff_pictures
egger-duotone-simulation
elsamuko-erosion-sharpen
elsamuko-grain
film-like-grain
hdroberts-cmy-adjust
histogram_match
jp-borders
kitty.in.th-velvia
Orton-Effect
shadow-highlight
silicosaur-photofx-crossprocess
silicosaur-photofx-portra
silicosaur-photofx-provia
silicosaur-photofx-velvia
tuxcomputers-split-tone
unsharp-mask-multilayer
vignetage

Some of them previously modified by me, or completely altered.

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