minor util script update

Merge pull request AcademySoftwareFoundation#531 from nerdvegas/issue…

…_528_pkg_tracking

Issue 528 pkg tracking

-fix for select.select not supported on windows

-fix for maya/katana replacing stdin with object that does not have fileno attribute

Merge pull request AcademySoftwareFoundation#213 from fnaum/rez_seach…

…_api_friendly

Rez search api friendly
# Conflicts:
#	src/rez/cli/search.py
#	src/rez/package_search.py

-minor code change, comment changes

Merge pull request AcademySoftwareFoundation#524 from nerdvegas/windo…

…ws_fixes

Windows fixes

Merge pull request AcademySoftwareFoundation#523 from nerdvegas/issue…

…_492

added support for different behavior of cli arg parsing, per subcommand

Merge pull request AcademySoftwareFoundation#522 from nerdvegas/issue…

…_514

-don't use memcache when reading developer package

version up

Merge fix doskey including tests