Ona contributions which also convert this branch into a library

.gitignore

@@ -1,22 +1,6 @@
-*.iml
-.gradle
-/local.properties
-/.idea/workspace.xml
-/.idea/libraries
-.DS_Store
-/build
-/captures
-.externalNativeBuild
-
-
-# Created by https://www.gitignore.io/api/macos,opencv,windows,androidstudio
-
-### AndroidStudio ###
-# Covers files to be ignored for android development using Android Studio.
-
-# Built application files
 *.apk
 *.ap_
+*.aab
 
 # Files for the ART/Dalvik VM
 *.dex
@@ -28,15 +12,12 @@
 bin/
 gen/
 out/
+release/
 
 # Gradle files
-.gradle
 .gradle/
 build/
 
-# Signing files
-.signing/
-
 # Local configuration file (sdk path, etc)
 local.properties
 
@@ -46,146 +27,55 @@ proguard/
 # Log Files
 *.log
 
-# Android Studio
-/*/build/
-/*/local.properties
-/*/out
-/*/*/build
-/*/*/production
-captures/
+# Android Studio Navigation editor temp files
 .navigation/
-*.ipr
-*~
-*.swp
+<<<<<<< HEAD
 
-# Android Patch
-gen-external-apklibs
-
-# External native build folder generated in Android Studio 2.2 and later
-.externalNativeBuild
-
-# NDK
-obj/
+# Android Studio captures folder
+captures/
 
-# IntelliJ IDEA
+# IntelliJ
 *.iml
-*.iws
-/out/
-
-# User-specific configurations
-.idea/libraries/
-.idea/workspace.xml
-.idea/tasks.xml
-.idea/.name
-.idea/compiler.xml
-.idea/copyright/profiles_settings.xml
-.idea/encodings.xml
-.idea/misc.xml
-.idea/modules.xml
-.idea/scopes/scope_settings.xml
-.idea/dictionaries
-.idea/vcs.xml
-.idea/jsLibraryMappings.xml
-.idea/datasources.xml
-.idea/dataSources.ids
-.idea/sqlDataSources.xml
-.idea/dynamic.xml
-.idea/uiDesigner.xml
-
-# OS-specific files
-.DS_Store
-.DS_Store?
-._*
-.Spotlight-V100
-.Trashes
-ehthumbs.db
-Thumbs.db
-
-# Legacy Eclipse project files
-.classpath
-.project
+**/.idea/
 
-# Mobile Tools for Java (J2ME)
-.mtj.tmp/
-
-# Package Files #
-*.war
-*.ear
-
-# virtual machine crash logs (Reference: http://www.java.com/en/download/help/error_hotspot.xml)
-hs_err_pid*
-
-## Plugin-specific files:
-
-# mpeltonen/sbt-idea plugin
-.idea_modules/
-
-# JIRA plugin
-atlassian-ide-plugin.xml
-
-# Mongo Explorer plugin
-.idea/mongoSettings.xml
-
-# Crashlytics plugin (for Android Studio and IntelliJ)
-com_crashlytics_export_strings.xml
-crashlytics.properties
-crashlytics-build.properties
-fabric.properties
-
-### AndroidStudio Patch ###
-
-!/gradle/wrapper/gradle-wrapper.jar
-
-### macOS ###
-*.DS_Store
-.AppleDouble
-.LSOverride
-
-# Icon must end with two \r
-Icon
-
-# Thumbnails
-
-# Files that might appear in the root of a volume
-.DocumentRevisions-V100
-.fseventsd
-.TemporaryItems
-.VolumeIcon.icns
-.com.apple.timemachine.donotpresent
+# Android Studio 3 in .gitignore file.
+.idea/caches
+.idea/modules.xml
+# Comment next line if keeping position of elements in Navigation Editor is relevant for you
+.idea/navEditor.xml
 
-# Directories potentially created on remote AFP share
-.AppleDB
-.AppleDesktop
-Network Trash Folder
-Temporary Items
-.apdisk
+# Keystore files
+# Uncomment the following lines if you do not want to check your keystore files in.
+#*.jks
+#*.keystore
 
-### OpenCV ###
-#OpenCV for Mac and Linux
-#build and release folders
-*/CMakeFiles
-*/CMakeCache.txt
-*/Makefile
-*/cmake_install.cmake
+# External native build folder generated in Android Studio 2.2 and later
+.externalNativeBuild
 
-### Windows ###
-# Windows thumbnail cache files
-ehthumbs_vista.db
+# Google Services (e.g. APIs or Firebase)
+# google-services.json
 
-# Folder config file
-Desktop.ini
+# Freeline
+freeline.py
+freeline/
+freeline_project_description.json
 
-# Recycle Bin used on file shares
-$RECYCLE.BIN/
+# fastlane
+fastlane/report.xml
+fastlane/Preview.html
+fastlane/screenshots
+fastlane/test_output
+fastlane/readme.md
 
-# Windows Installer files
-*.cab
-*.msi
-*.msm
-*.msp
+# Version control
+vcs.xml
 
-# Windows shortcuts
-*.lnk
+# lint
+lint/intermediates/
+lint/generated/
+lint/outputs/
+lint/tmp/
+lint/reports/*.iml
 
+.DS_Store
 
-# End of https://www.gitignore.io/api/macos,opencv,windows,androidstudio

LICENSE

@@ -1,6 +1,6 @@
 BSD 3-Clause License
 
-Copyright (c) 2018, The University of Washington Ubicomp Lab, and Medic Mobile.
+Copyright (c) 2020, The University of Washington Ubicomp Lab.
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without