Update CoolReader to 3.1.2-48 (868)

Update Git URL

metadata/org.coolreader.txt

@@ -17,7 +17,7 @@ section of the Settings.
 .
 
 Repo Type:git
-Repo:git://crengine.git.sourceforge.net/gitroot/crengine/crengine
+Repo:git://git.code.sf.net/p/crengine/crengine
 
 #Has a conflicting (and invalid) target in build.properties - remove it
 Build:3.0.39-35,60
@@ -308,8 +308,15 @@ Build:3.1.2-39,859
     target=android-19
     buildjni=yes
 
+Build:3.1.2-48,868
+    commit=cr3.1.2-48
+    subdir=android
+    rm=android/build.properties
+    target=android-19
+    buildjni=yes
+
 Auto Update Mode:None
 Update Check Mode:RepoManifest
-Current Version:3.1.2-39
-Current Version Code:859
+Current Version:3.1.2-48
+Current Version Code:868