Re-added prefix "Sublime" to "Python IDE"

Different names for Github repository and Package 
Control led to wrong paths for users cloning the 
repo vs. users installing from Package Control. 
Example: Paths to the settings file in Main.sublime-menu 
have to be specified with an absolute package directory
name. Consistency between repository and Package
Control metadata is therefore necessary.

p.s. It would be cool if the install directory name 
could be specified separately from searchable/
indexed name of the package.