update gradle props and ignore files we don't want in repo

.gitignore

@@ -63,3 +63,5 @@ obj
 
 
 app/src/main/jniLibs/
+app/src/main/libs/
+orbotservice/src/main/assets/armeabi/

gradle.properties

@@ -0,0 +1,16 @@
+## Project-wide Gradle settings.
+#
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+#
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+# Default value: -Xmx10248m -XX:MaxPermSize=256m
+# org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
+#
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
+#Mon Jun 20 21:44:59 EDT 2016
+android.useDeprecatedNdk=true