Merge pull request #143 from zalun/SDK-1.6

SDK 1.6 added, tests are fine

.gitmodules

@@ -52,3 +52,6 @@
 [submodule "lib/addon-sdk-1.6b1"]
 	path = lib/addon-sdk-1.6b1
 	url = git://github.com/mozilla/addon-sdk.git
+[submodule "lib/addon-sdk-1.6"]
+	path = lib/addon-sdk-1.6
+	url = git://github.com/mozilla/addon-sdk.git

lib/addon-sdk-1.6

@@ -0,0 +1 @@
+Subproject commit de78ccb1c23ea6a78675fc572151ef27d9eca58e

settings.py

@@ -133,7 +133,7 @@ XPI_AMO_PREFIX = "ftp://ftp.mozilla.org/pub/mozilla.org/addons/"
 # The lowest approved SDK available for add-ons
 DISABLED_SDKS = ('1.4', '1.4.1', '1.4.1-w-1', '1.4.2')
 LOWEST_APPROVED_SDK = "1.5"
-TEST_SDK = 'addon-sdk-1.5'
+TEST_SDK = 'addon-sdk-1.6'
 TEST_AMO_USERNAME = None
 TEST_AMO_PASSWORD = None
 AUTH_DATABASE = None