Changes for lib::projectroot

1.003   2015-05-04T22:16:08
    - allow extra=.. as the only argument


1.002   2015-05-04T22:04:25 (never released to CPAN)
    - load extra via import
    - fix some english grammar errors (spotted by sixtease)


1.001   2014-12-08T19:40:24
    - fixed testlib to work on more OSes (as reported by cpantesters)
    - fixed link in POD


1.000	2014-12-07T14:54:54
	- first inital release
	- see http://prepan.org/module/nY4oajhgzJN for some pre-release discussions