New-style class for SVMClassifier
PEP-8 and readability fixes.

Removed C-sytle parenteses in if-statements
Replaced indexed iteration with iterators
Cleared extra lines and superfluous whitespace
Shortened long lines (some still exceed the 79 chars dictated by PEP-8)
Fixed string concatenation to use str.format
Various other fixes
Improved docstring for SVMClassifier.
Bugfix:  SVMType is now 'C'.  Was 'NU' before and caused errors
Merge branch 'develop' of https://github.com/louist87/SimpleCV into develop