Changed version number to 3.1

Author: mmasdeu

.travis.yml

@@ -9,18 +9,18 @@ matrix:
   - env: CACHE_NAME=older SAGE_SERVER=http://mirrors.xmission.com/sage/linux/64bit/ SAGE_AGE=1
 
 install:
-- "./.travis-install.sh"
+- ./.travis-install.sh
 script:
-- "./.travis-test.sh"
+- ./.travis-test.sh
 cache:
   directories:
-  - "$HOME/SageMath"
-  - "$HOME/.cache/matplotlib"
+  - $HOME/SageMath
+  - $HOME/.cache/matplotlib
   timeout: 1000
 before_cache:
 - rm -Rf $HOME/SageMath/logs $HOME/SageMath/.BUILDSTART
 after_success:
-- "./.travis-deploy-doc.sh"
+- ./.travis-deploy-doc.sh
 before_script:
 - openssl aes-256-cbc -K $encrypted_111e15ae3c19_key -iv $encrypted_111e15ae3c19_iv
   -in .travis_ci_gh_pages_deploy_key.enc -out .travis_ci_gh_pages_deploy_key -d

VERSION

@@ -1 +1 @@
-3.3
+3.1