Added Color Space info to iTerm2 templates

When loading colors from the profiles iTerm2 searches for the Color
Scheme key, if that isn't found they are converted to the Calibrated
color space.
Since the colors are defined in the sRGB color space, we need to specify
it, so they are loaded correctly.

Signed-off-by: Enrico Ghirardi <i@choco.me>
Merge pull request #115 from cHoco/master

Added Color Space info to iTerm2 templates