add ztree to drag and sort notebooks
add notebook, add sub notebook, delete, rename [ok]
choose notebook to add note/markdown [ok]
search notebook for list [ok]
move, copy notebooks contextmenu ok
prepare to fix min
min left ok
item setting [ok]
notebook icon [ok]
before sharenotebooks
share notebook [ok]
all is ok, waitting to edit default theme
default theme [ok]
v1.0-alpha release
contexmenu dynamic
fix
fix
Merge branch 'develop'

Conflicts:
	public/css/theme/default.css
	public/css/theme/simple.css
	public/css/theme/writting-overwrite.css
	public/css/theme/writting.css
merge