Add notice for updating extensions

app/build.gradle

@@ -38,7 +38,7 @@ android {
         minSdkVersion 16
         targetSdkVersion 26
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
-        versionCode 31
+        versionCode 32
         versionName "0.6.8"
 
         buildConfigField "String", "COMMIT_COUNT", "\"${getCommitCount()}\""

app/src/main/res/raw/changelog_debug.xml

@@ -1,6 +1,14 @@
 <?xml version="1.0" encoding="utf-8"?>
 <changelog bulletedList="false">
 
+    <changelogversion changeDate="" versionName="r1340">
+        <changelogtext>A new screen for managing extensions was added. If you previously installed extensions from FDroid,
+            you will have to uninstall all of them first (tap on the extension then uninstall), otherwise you won't be able
+            to update them due to signature mismatch. You won't lose anything in this process as the extensions themselves
+            don't store anything.
+        </changelogtext>
+    </changelogversion>
+
     <changelogversion changeDate="" versionName="r959">
         <changelogtext>The download manager has been rewritten and it's possible some of your downloads
             aren't recognized anymore. You may have to check your downloads folder and manually delete those.
@@ -28,4 +36,4 @@
         </changelogtext>
     </changelogversion>
 
-</changelog>
+</changelog>