README and Travis CI tweaks

- Update links to RedHat & Ubuntu install guides
- Travis CI now tests against Go 1.2 and tip

.travis.yml

@@ -1,7 +1,7 @@
 language: go
 
 go:
-  - 1.1
+  - 1.2
   - tip
 
 install:

etc/redhat-el6/README

@@ -1,3 +1,3 @@
 Please see the RedHat installation guide on our website:
 
-http://jhillyerd.github.com/inbucket/installation/redhat.html
+http://inbucket.org/installation/redhat.html

etc/ubuntu-12/README

@@ -1,5 +1,3 @@
 Please see the Ubuntu installation guide on our website:
 
-http://jhillyerd.github.com/inbucket/installation/ubuntu.html
-
-This has moved to ...?
+http://inbucket.org/installation/ubuntu.html