Temporarily downgrade PdfiumAndroid because of DImuthuUpe#253

Update README and CHANGELOG

Author: barteksc

CHANGELOG.md

@@ -1,3 +1,6 @@
+## 2.5.1 (2017-04-08)
+* Temporarily downgrade PdfiumAndroid until #253 will be fixed
+
 ## 2.5.0 (2017-03-23)
 * Update PdfiumAndroid to 1.6.0, which is based on newest Pdfium from Android 7.1.1. It should fix many rendering and fonts problems
 * Add method `pdfView.fitToWidth()`, which called in `OnRenderListener.onInitiallyRendered()` will fit document to width of the screen (inspired by [1stmetro](https://github.com/1stmetro))

README.md

@@ -19,6 +19,8 @@ Licensed under Apache License 2.0.
 * Modify engine to not block UI when big documents are loaded
 * Change `Constants` interface and inner interfaces to static public classes, to allow modifying core config values
 
+Version 2.5.1 temporarily downgrades PdfiumAndroid until #253 will be fixed
+
 ## Changes in 2.0 API
 * `Configurator#defaultPage(int)` and `PDFView#jumpTo(int)` now require page index (i.e. starting from 0)
 * `OnPageChangeListener#onPageChanged(int, int)` is called with page index (i.e. starting from 0)

android-pdf-viewer/build.gradle

@@ -13,7 +13,7 @@ ext {
     siteUrl = 'https://github.com/barteksc/AndroidPdfViewer'
     gitUrl = 'https://github.com/barteksc/AndroidPdfViewer.git'
 
-    libraryVersion = '2.5.0'
+    libraryVersion = '2.5.1'
 
     developerId = 'barteksc'
     developerName = 'Bartosz Schiller'
@@ -32,13 +32,13 @@ android {
         minSdkVersion 11
         targetSdkVersion 25
         versionCode 1
-        versionName "2.5.0"
+        versionName "2.5.1"
     }
 
 }
 
 dependencies {
-    compile 'com.github.barteksc:pdfium-android:1.6.0'
+    compile 'com.github.barteksc:pdfium-android:1.5.0'
 }
 
 apply from: 'https://raw.githubusercontent.com/nuuneoi/JCenter/master/installv1.gradle'