[epiphany] Revert "Just stop running all the tests"

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 247ef5899947a3b63c2adb033705c46555250529
Author: Michael Catanzaro <mcatanzaro igalia com>
Date:   Thu Feb 22 16:21:55 2018 -0600

    Revert "Just stop running all the tests"
    
    This reverts commit 3d674bbdf9713a2ea7bdeead6bee9e4c8e337b19.

 meson_options.txt |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/meson_options.txt b/meson_options.txt
index 9e16826..4afbd84 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -24,6 +24,6 @@ option('tech_preview',
 
 option('unit_tests',
   type: 'boolean',
-  value: false,
+  value: true,
   description: 'Enable unit tests'
 )