Add nextgis app

metadata/com.nextgis.mobile.txt

@@ -0,0 +1,34 @@
+Categories:Games
+License:GPLv3+
+Web Site:http://nextgis.ru/en/nextgis-mobile
+Source Code:https://github.com/nextgis/android_gisapp
+Issue Tracker:https://github.com/nextgis/android_gisapp/issues
+
+Auto Name:NextGIS Mobile
+Summary:GIS that lets you create, edit and export geodata, both online and offline
+Description:
+NextGIS Mobile allows to:
+
+* show multi-layer map (layers can come from online and offline sources);
+* change visibility and layers order;
+* navigate the map (panning, zoom in, zoom out);
+* collect data in the field;
+* edit vector data (both geometries and attributes) online and offline;
+* record tracks;
+* show coordinates, speed, elevation etc.
+.
+
+Repo Type:git
+Repo:https://github.com/nextgis/android_gisapp
+
+Build:2.3,13
+    commit=3ceca6fbf27dd10f030c1910eb225b3f29c30afa
+    subdir=app
+    submodules=yes
+    gradle=yes
+    prebuild=sed -i "s/\(buildscript {\)/\1\n System.properties['com.android.build.gradle.overrideVersionCheck'] = 'true'/" ../build.gradle
+
+Auto Update Mode:Version %v
+Update Check Mode:Tags
+Current Version:2.3
+Current Version Code:13