add go1.1+ requirement

.travis.yml

@@ -1,7 +1,6 @@
 language: go
 
 go:
-    - 1.0
     - 1.1
     - 1.2
     - tip

README.md

@@ -12,6 +12,8 @@ Syntax-wise, it is as close as possible to jQuery, with the same function names
 
 ## Installation
 
+Please note that because of the net/html dependency, goquery requires Go1.1+.
+
     $ go get github.com/PuerkitoBio/goquery
 
 (optional) To run unit tests:

doc.go

@@ -48,6 +48,8 @@ at you, index()...).
 It is hosted on GitHub, along with additional documentation in the README.md
 file: https://github.com/puerkitobio/goquery
 
+Please note that because of the net/html dependency, goquery requires Go1.1+.
+
 The various methods are split into files based on the category of behavior:
 
 * array.go : array-like positional manipulation of the selection.