Update of the documentation regarding the Scilab change
Merge pull request #83 from smarchetto/gsoc2012-scilab

Scilab const & enums improvements, parallelization of test-suite
Scilab documentation tweaks.

Minor grammar fixes.
Fix HTML.
HTML formatting changes.
Scilab command line options

Document the options.
Make scilab -help consistent with the other target languages.
Slight coding improvement
Correct Scilab output file handling

Fix seg fault when builder file cannot be written.
Correct locations of output files when using -outdir - only language
specific files are output into the direrctory specified by -outdir.
Merge remote-tracking branch 'upstream/gsoc2012-scilab' into gsoc2012-scilab

Conflicts:
	Source/Modules/scilab.cxx