up version code and name, add release notes (#897)

Author: bklastaitis-branch

ChangeLog.md

@@ -1,6 +1,11 @@
 # Branch Android SDK change log
+- v5.0.6
+  * _*Master Release*_ - February 26, 2020
+  * Add INITIATE_STREAM and COMPLETE_STREAM standard events
+  * Fix getSdkVersionNumber() API
+  
 - v5.0.5
-  * _*Master Release*_ - January 21, 2020
+  * _*Master Release*_ - February 17, 2020
   * Add API to pass hashed partner parameters (Facebook integration)
   * Fix bugs in the networking pipeline of CPID and LATD requests
   * Fix bug preventing callback invocation when url creation request times out

gradle.properties

@@ -1,5 +1,5 @@
-VERSION_NAME=5.0.5
-VERSION_CODE=050005
+VERSION_NAME=5.0.6
+VERSION_CODE=050006
 GROUP=io.branch.sdk.android
 
 POM_DESCRIPTION=Use the Branch SDK (branch.io) to create and power the links that point back to your apps for all of these things and more. Branch makes it incredibly simple to create powerful deep links that can pass data across app install and open while handling all edge cases (using on desktop vs. mobile vs. already having the app installed, etc). Best of all, it is really simple to start using the links for your own app: only 2 lines of code to register the deep link router and one more line of code to create the links with custom data.