Merge pull request #19 from aaronmueller/dev

Shorten the root path to display the last part (fixes #16)
Merge pull request #21 from aaronmueller/dev

Make the help text header optional and add a customize option.
Make the window initialize process more reasonable
rename function name

change neo-window--select to neo-global--get-widnow
add neo-window--zoom
rename function

Rename neo-width to neo-window-width
Maximize toggle feature added. Issue #12
Text modification for stretch window func and doc.
Merge pull request #25 from jianingy/dev

Text modification for stretch window func and doc.