Update to new powerline-fontpatcher

The font patcher inside the main Powerline repository was removed
Patch Powerline font patcher for Ricty glyph size

The Powerline font patcher normally scales the Powerline glyphs to match
the largest width and height of any glyph in the Latin-1 extended or
box-drawing ranges. This is far too big for Ricty, so this patch
overrides the font patcher with a custom glyph bounding box
(0, -525, 1025, 1650) that works well with Ricty.
Add options to disable visible space or fullwidth

'--disable-fullwidth' will disable fullwidth ambiguous characters
'--disable-visible-space' will disable the visible zenkaku space
Add option to patch Powerline glyphs in-place

'--patch-in-place' will patch Powerline glyphs directly into Ricty fonts
without creating new 'for Powerline' fonts

If '--patch-in-place' is used, '--powerline' and '--vim-powerline' can't both
be used at the same time, so '--powerline' is given priority.
Merge pull request #7 from aikinai/master

Powerlineグリフを調整、RictyとPowerlineオプションを追加