Squashed. Misc todos; rename to gsnmpgo.

commit 56ca13b25325f8cb11b1b5c41c0af854eaa6677b
Author: Sonia Hamilton <sonia@snowfrog.net>
Date:   Fri Feb 1 09:45:27 2013 +1100

    rename project gsnmp -> gsnmpgo

commit ad94c60d2e50df9b9c82058e8ace4f09fe16c79f
Author: Sonia Hamilton <sonia@snowfrog.net>
Date:   Thu Jan 31 16:20:26 2013 +1100

    set version on session in NewUri()

commit 12760b5a02a882433cf9452f2d351f6d36aa949d
Author: Sonia Hamilton <sonia@snowfrog.net>
Date:   Thu Jan 31 16:18:55 2013 +1100

    use version stringer in GNetSnmp stringer

commit 079b196d3930df4daacafcaef1c4a022876aaeef
Author: Sonia Hamilton <sonia@snowfrog.net>
Date:   Thu Jan 31 16:14:02 2013 +1100

    GNetSnmpVersion - stringer/enum

commit f7998229ed3a67acf8c7bf0cc4e16a9c7e3d151c
Author: Sonia Hamilton <sonia@snowfrog.net>
Date:   Thu Jan 31 16:09:38 2013 +1100

    doco tidy; enumconv remove spurious //'s

commit 482d16b5a74651944293463be14033ec0f3b86b0
Author: Sonia Hamilton <sonia@snowfrog.net>
Date:   Thu Jan 31 16:01:35 2013 +1100

    doco tidy

commit 184bba13c9b2786de9c212f9c6c48cf8c8402534
Author: Sonia Hamilton <sonia@snowfrog.net>
Date:   Thu Jan 31 15:53:58 2013 +1100

    rename some stringers

commit b20e6febaf90a8d327251ac9388f1b215b594576
Author: Sonia Hamilton <sonia@snowfrog.net>
Date:   Thu Jan 31 15:29:48 2013 +1100

    rewrite oids_to_string() in Go

commit 38f1d1721762c2afe0f7a452aab363a176ca169a
Author: Sonia Hamilton <sonia@snowfrog.net>
Date:   Thu Jan 31 14:54:35 2013 +1100

    change fn signature union_ui8v_hexstring() - TYPE_OPAQUE