Merge branch 'find3' into 'master'

FIND3 - WiFi+Bluetooth based local GPS

Closes rfp#688

See merge request fdroid/fdroiddata!3547

metadata/com.internalpositioning.find3.find3app.yml

@@ -0,0 +1,53 @@
+Categories:
+  - Navigation
+License: MIT
+WebSite: https://www.internalpositioning.com/doc/tracking_your_phone.md
+SourceCode: https://github.com/schollz/find3-android-scanner
+IssueTracker: https://github.com/schollz/find3-android-scanner/issues
+Changelog: https://github.com/schollz/find3-android-scanner/releases
+
+Summary: Scan Bluetooth and WiFi for FIND3
+Description: |-
+    ''FIND3'' is a minimal Android app for using with
+    [https://www.internalpositioning.com/ FIND3]. This app will allow you to use
+    your phone to perform constant scans of Bluetooth and WiFi signals and levels
+    that can be associated with certain locations in your home to allow internal
+    positioning. To receive the data, the [https://github.com/schollz/find3 FIND3
+    public server] can be used or a personal server can be deployed.
+
+    The Framework for Internal Navigation and Discovery (FIND) is like GPS, but for
+    your every room in your house/business, with using only a simple smartphone or
+    laptop.
+
+    Your device (laptop or a smartphone) tracks itself by actively scanning for
+    nearby Bluetooth/WiFi devices and records their signal strengths and
+    classifying them based on known signal strengths for a given location.
+
+    This repository is a complete re-write of the [github.com/schollz/find previous
+    version of FIND]. The API for sending fingerprints (/track and /learn) is
+    backward compatible. There are several notable improvements on the previous
+    version:
+
+    * Support for any data source, Bluetooth / WiFi / magnetic fields / etc. (previously just WiFi)
+    * Passive scanning built-in (previously required a separate server)
+    * Support for Bluetooth scanning in scanning utility (previously just WiFi)
+    * Meta-learning with 10 different machine learning classifiers (previously just three)
+    * Client uses Websockets+React which reduces bandwidth (and coding complexity)
+    * Rolling compression of mac addresses for much smaller on-disk databases (see mapslimmer)
+    * Data storage in SQLITE-database (previously it was BoltDB)
+
+RepoType: git
+Repo: https://github.com/schollz/find3-android-scanner
+
+Builds:
+  - versionName: 3.0.3
+    versionCode: 6
+    commit: v3.0.3
+    subdir: app
+    gradle:
+      - yes
+
+AutoUpdateMode: Version v%v
+UpdateCheckMode: Tags
+CurrentVersion: 3.0.3
+CurrentVersionCode: 6