Resolve double dot and tilde

[pdonias]

Wouldn't it be better if toAbsGlob('../a') could return '/dev/a' instead of '/dev/foo/../a'?

Same thing for tilde: toAbsGlob('~/a') should return '/path/to/my/home/a' instead of '/dev/foo/~/a'

[jonschlinkert]

is this based on actual usage or theoretical based on a typo in the readme?

[pdonias]

Actual usage :)