application: refactor version checks, move to ApplicationUtils

Relates to #372

Modifications:
 - move checkUpdate() to ApplicationUtils
 - reduce file I/O operations during version checks
 - apply coding conventions
 - add test coverage

Tools:
 - create a sandbox directory for tests

Signed-off-by: VirtualTam <virtualtam@flibidi.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/tests/CachedPageTest.php b/tests/CachedPageTest.php
index e97af030..51565cd6 100644
--- a/tests/CachedPageTest.php
+++ b/tests/CachedPageTest.php
@@ -11,7 +11,7 @@ require_once 'application/CachedPage.php';
 class CachedPageTest extends PHPUnit_Framework_TestCase
 {
     // test cache directory
-    protected static $testCacheDir = 'tests/pagecache';
+    protected static $testCacheDir = 'sandbox/pagecache';
     protected static $url = 'http://shaar.li/?do=atom';
     protected static $filename;