Optimize bash Windows, force LF line endings

.gitattributes

@@ -12,3 +12,6 @@ spec/fixtures/css.css text eol=lf
spec/fixtures/sample.js text eol=lf
spec/fixtures/sample.less text eol=lf
spec/fixtures/sample.txt text eol=lf

# Windows bash scripts are also Unix LF endings
*.sh		eol=lf

resources/win/atom.sh

@@ -1,9 +1,9 @@
#!/bin/sh
pushd "$(dirname "$0")" > /dev/null
if command -v "cygpath" > /dev/null; then
  ATOMCMD=""$(cygpath . -a -w)atom.cmd""
  ATOMCMD=""$(cygpath "$(dirname "$0")" -a -w)\\atom.cmd""
else
  pushd "$(dirname "$0")" > /dev/null
  ATOMCMD=""$(pwd -W)/atom.cmd""
  popd > /dev/null
fi
popd > /dev/null
cmd.exe //c "$ATOMCMD" "$@"
cmd.exe /C "$ATOMCMD" "$@"