Merge branch 'DocumentViewer' into 'master'

Document Viewer: separate build for each arch.

@krt @mvdan @Ciarang Since this is quite a change, I preferred to send an MR before directly committing to fdroid/fdroiddata

* Rationale: build for a single arch is 3.9 MB vs the current 9.9 MB for only 4 archs.
* Upstream doesn't increment the least digit of vercode, hence use it to
  differentiate between archs.

See merge request !883

metadata/org.sufficientlysecure.viewer.txt

@@ -111,10 +111,117 @@ Build:2.7.3,2730
     scandelete=document-viewer/jni/mupdf/mupdf/build/debug/
     buildjni=yes
 
+Build:2.7.3,2731
+    commit=v2.7.3
+    subdir=document-viewer
+    submodules=yes
+    gradle=yes
+    prebuild=sed -i -e '/splits/,+7d' build.gradle && \
+        sed -i -e '/applicationVariants\.all/,+5d' build.gradle && \
+        sed -i -e '/ext\.versionCode/d' build.gradle && \
+        echo "APP_ABI := armeabi" > jni/Application.mk && \
+        pushd ../ && ./init.sh && popd
+    ndk=r10e
+    forcevercode=yes
+    scandelete=document-viewer/jni/mupdf/mupdf/build/debug/
+    buildjni=yes
+
+Build:2.7.3,2732
+    commit=v2.7.3
+    subdir=document-viewer
+    submodules=yes
+    gradle=yes
+    ndk=r10e
+    forcevercode=yes
+    prebuild=sed -i -e '/splits/,+7d' build.gradle && \
+        sed -i -e '/applicationVariants\.all/,+5d' build.gradle && \
+        sed -i -e '/ext\.versionCode/d' build.gradle && \
+        echo "APP_ABI := armeabi-v7a" > jni/Application.mk && \
+        pushd ../ && ./init.sh && popd
+    scandelete=document-viewer/jni/mupdf/mupdf/build/debug/
+    buildjni=yes
+
+Build:2.7.3,2733
+    commit=v2.7.3
+    subdir=document-viewer
+    submodules=yes
+    gradle=yes
+    ndk=r10e
+    forcevercode=yes
+    prebuild=sed -i -e '/splits/,+7d' build.gradle && \
+        sed -i -e '/applicationVariants\.all/,+5d' build.gradle && \
+        sed -i -e '/ext\.versionCode/d' build.gradle && \
+        echo "APP_ABI := x86" > jni/Application.mk && \
+        pushd ../ && ./init.sh && popd
+    scandelete=document-viewer/jni/mupdf/mupdf/build/debug/
+    buildjni=yes
+
+Build:2.7.3,2734
+    commit=v2.7.3
+    subdir=document-viewer
+    submodules=yes
+    gradle=yes
+    ndk=r10e
+    forcevercode=yes
+    prebuild=sed -i -e '/splits/,+7d' build.gradle && \
+        sed -i -e '/applicationVariants\.all/,+5d' build.gradle && \
+        sed -i -e '/ext\.versionCode/d' build.gradle && \
+        echo "APP_ABI := mips" > jni/Application.mk && \
+        pushd ../ && ./init.sh && popd
+    scandelete=document-viewer/jni/mupdf/mupdf/build/debug/
+    buildjni=yes
+
+Build:2.7.3,2735
+    commit=v2.7.3
+    subdir=document-viewer
+    submodules=yes
+    gradle=yes
+    ndk=r10e
+    forcevercode=yes
+    prebuild=sed -i -e '/splits/,+7d' build.gradle && \
+        sed -i -e '/applicationVariants\.all/,+5d' build.gradle && \
+        sed -i -e '/ext\.versionCode/d' build.gradle && \
+        echo "APP_ABI := arm64-v8a" > jni/Application.mk && \
+        pushd ../ && ./init.sh && popd
+    scandelete=document-viewer/jni/mupdf/mupdf/build/debug/
+    buildjni=yes
+
+Build:2.7.3,2736
+    commit=v2.7.3
+    subdir=document-viewer
+    submodules=yes
+    gradle=yes
+    ndk=r10e
+    forcevercode=yes
+    prebuild=sed -i -e '/splits/,+7d' build.gradle && \
+        sed -i -e '/applicationVariants\.all/,+5d' build.gradle && \
+        sed -i -e '/ext\.versionCode/d' build.gradle && \
+        echo "APP_ABI := x86_64" > jni/Application.mk && \
+        pushd ../ && ./init.sh && popd
+    scandelete=document-viewer/jni/mupdf/mupdf/build/debug/
+    buildjni=yes
+
+Build:2.7.3,2737
+    commit=v2.7.3
+    subdir=document-viewer
+    submodules=yes
+    gradle=yes
+    ndk=r10e
+    forcevercode=yes
+    prebuild=sed -i -e '/splits/,+7d' build.gradle && \
+        sed -i -e '/applicationVariants\.all/,+5d' build.gradle && \
+        sed -i -e '/ext\.versionCode/d' build.gradle && \
+        echo "APP_ABI := mips64" > jni/Application.mk && \
+        pushd ../ && ./init.sh && popd
+    scandelete=document-viewer/jni/mupdf/mupdf/build/debug/
+    buildjni=yes
+
 Maintainer Notes:
-Check init.sh from time to time.
+* Check init.sh from time to time.
+* Archive policy last three upstream releases
 .
 
+Archive Policy:10 versions
 Auto Update Mode:Version v%v
 Update Check Mode:Tags
 Current Version:2.7.3