Improved git repo address parsing logic.
Migrated all colors.
Improved git repo address parsing logic.
New config 'all_colors' & Minor changes to other configs.
Some change in vimrc.

* Try to simplify vim interface
    * nerver show status bar.
    * set command line 1 line height.
* enabled vim syntax folding.
* commented out 'set hidden', let vim release file when it goes into invisible.