Throws ugly warning if installed.json does not exist

[elliotchance]

Running concise may print this:

PHP Warning:  file_get_contents(/home/travis/build/kounta/kounta/vendor/elliotchance/concise/src/Concise/../../vendor/composer/installed.json): failed to open stream: No such file or directory in /home/travis/build/kounta/kounta/vendor/elliotchance/concise/src/Concise/Version.php on line 9
PHP Stack trace:
PHP   1. {main}() /home/travis/build/kounta/kounta/vendor/elliotchance/concise/bin/concise:0
PHP   2. Concise\Version->getConciseVersion() /home/travis/build/kounta/kounta/vendor/elliotchance/concise/bin/concise:7
PHP   3. Concise\Version->getVersionForPackage() /home/travis/build/kounta/kounta/vendor/elliotchance/concise/src/Concise/Version.php:21
PHP   4. file_get_contents() /home/travis/build/kounta/kounta/vendor/elliotchance/concise/src/Concise/Version.php:9

[elliotchance]

The path is also wrong, it should be /mnt/hgfs/git/kounta/vendor/elliotchance/concise/src/Concise/../../../../composer/installed.json

[coveralls]

Coverage decreased (-0.08%) when pulling 9d26563 on 1.3.1/148-installed-json-does-not-exist into f58e5a6 on release/1.3.1.

[scrutinizer-notifier]

A new inspection was created.

[coveralls]

Coverage decreased (-0.08%) when pulling fc26bf4 on 1.3.1/148-installed-json-does-not-exist into f58e5a6 on release/1.3.1.