Update README / Changelog (version 0.2.0 release)

Author: Douglasdc3

CHANGELOG.md

@@ -11,3 +11,32 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 #### Added
 
 #### Removed
+
+### [v0.2.0][v0.2.0]
+
+#### Fixed
+ 
+ - BDS21: Is not valid if first byte is 0b00100000
+ - BDS45: Is invalid if status = false and static pressure is likely wrong
+ - BDS60
+    - Calculate CAS and compare with IAS to increase accuracy / validity
+    - If status flag = true and value is non-zero it cannot be BDS60 message
+    - Perform status bit checks on correct data bits
+ - BDS50: Filter groundspeed > 600 as incorrect message to reduce number of false positives
+ - BDS40: Check status flags and non-zero values
+ - BDS40: MCP Altitude calculations
+ - BDS45: check radio height on correct data bits
+      
+#### Changed
+ 
+ - Migrate Maven POM based release to Gradle based release
+ - ModeSDatabase can now be loaded using external CSV files
+
+#### Added
+
+ - DF17: Aircraft Operational Status (Version 2 Airborne/Ground)
+ - DF17: Aircraft Operational Status (Version 1 Airborne/Ground)
+ - DF17: Airborne Velocity
+ - Only work with Downlink Message without track management
+ - Disable tracks deleted on automatically
+

README.md

@@ -58,9 +58,9 @@ Most features of the DF17/18 protocol have been implemented, some message lack s
 | 26        | Reserved Message             | ✅        |
 | 27        | Reserved (Trajectory Change) | ✅        |
 | 28        | Aircraft Status Message      | ✅        | Priority mode A code (emergency) + TCAS/ACAS RA Broadcast
-| 29        | Target Status Message        | ⚠️        | Partial support
+| 29        | Target Status Message        | ✅        | Partial support
 | 30        | Reserved Message             | ✅        |
-| 31        | Aircraft Operational Status  | ⚠️        | Partial support
+| 31        | Aircraft Operational Status  | ✅        | Partial support
 
 
 ## DF20/21 Comm-B
@@ -112,7 +112,7 @@ We hope with more BDS implemented the guessing accuracy will improve.
 | 1,E | Mode S services GICB capability report     | ❌        |
 | 1,F | Mode S services GICB capability report     | ❌        |
 | 2,0 | Aircraft Identification                    | ✅        |
-| 2,1 | Aircraft and Airline registration marking  | ⚠️        | Experimental
+| 2,1 | Aircraft and Airline registration marking  | ✅️        | Experimental
 | 2,2 | Antenna positions                          | ❌        |
 | 2,5 | Antenna type                               | ❌        |
 | 3,0 | ACAS Active resolution advisory            | ❌        | Detection implemented, decoding missing
@@ -153,7 +153,7 @@ Pom
 <dependency>
   <groupId>aero.t2s</groupId>
   <artifactId>mode-s</artifactId>
-  <version>0.2.0-SNAPSHOT</version>
+  <version>0.2.0</version>
 </dependency>
 ```