Initial personal customize
add color themem, project, tag
Add Helm
use aspell instead of ispell
git-gutter-mode: show git changes
Add smart parens
add cscope to browser c code
Full screen under X (GNU/Linux)
Discard icomplete-mode, use helm now
Fix cscope setup

使用 cscope 而不是 GNU Global，跟 ctags 有冲突的地方
Adopt git-gutter+
Setup auto-complete
auto-complete: add clang backend c++ and gtk+

Get include dirs:
- pkg-config --cflags-only-I gtk+-3.0
- g++ -v -x c++ -E
insert bracket by pair

use electric-pair-mode
set font for Mac OSX
Customize helm
remove ido-fix
add ztree
Add various help mode
use global and ggtags