rename 'gordon' to 'gopher'

R=r
CC=golang-dev
https://golang.org/cl/1207041

diff --git a/doc/gordon/bumper.png b/doc/gopher/bumper.png
similarity index 100%
rename from doc/gordon/bumper.png
rename to doc/gopher/bumper.png

diff --git a/doc/gordon/bumper192x108.png b/doc/gopher/bumper192x108.png
similarity index 100%
rename from doc/gordon/bumper192x108.png
rename to doc/gopher/bumper192x108.png

diff --git a/doc/gordon/bumper320x180.png b/doc/gopher/bumper320x180.png
similarity index 100%
rename from doc/gordon/bumper320x180.png
rename to doc/gopher/bumper320x180.png

diff --git a/doc/gordon/bumper480x270.png b/doc/gopher/bumper480x270.png
similarity index 100%
rename from doc/gordon/bumper480x270.png
rename to doc/gopher/bumper480x270.png

diff --git a/doc/gordon/bumper640x360.png b/doc/gopher/bumper640x360.png
similarity index 100%
rename from doc/gordon/bumper640x360.png
rename to doc/gopher/bumper640x360.png

diff --git a/doc/gordon/gopherbw.png b/doc/gopher/gopherbw.png
similarity index 100%
rename from doc/gordon/gopherbw.png
rename to doc/gopher/gopherbw.png

diff --git a/doc/gordon/gophercolor.png b/doc/gopher/gophercolor.png
similarity index 100%
rename from doc/gordon/gophercolor.png
rename to doc/gopher/gophercolor.png

diff --git a/doc/gordon/gophercolor16x16.png b/doc/gopher/gophercolor16x16.png
similarity index 100%
rename from doc/gordon/gophercolor16x16.png
rename to doc/gopher/gophercolor16x16.png