DevKit updates

.github/ISSUE_TEMPLATE.md

@@ -12,21 +12,19 @@
 
 #### Sonata packages
 
-```bash
-$ composer show sonata-project/*
-# Put the result here.
+```
+$ composer show --latest 'sonata-project/*'
 ```
 
 #### Symfony packages
 
-```bash
-$ composer show symfony/*
-# Put the result here.
+```
+$ composer show --latest 'symfony/*'
 ```
 
 #### PHP version
 
-```bash
+```
 $ php -v
 # Put the result here.
 ```

.travis/before_install_test.sh

@@ -8,8 +8,6 @@ if [ "${TRAVIS_PHP_VERSION}" != "hhvm" ]; then
 
     fi
 
-# To be removed when following PR will be merged: https://github.com/travis-ci/travis-build/pull/718
-composer self-update --stable
 sed --in-place "s/\"dev-master\":/\"dev-${TRAVIS_COMMIT}\":/" composer.json
 
 if [ "$SYMFONY" != "" ]; then composer require "symfony/symfony:$SYMFONY" --no-update; fi;