Pack: Bumped version to 5.7.1-dev0 after release.
Purged pre-built library binaries from repo.

Change-Id: I6f3fb1db0a2936afde3e67582e96018063cb8ef4
diff --git a/ARM.CMSIS.pdsc b/ARM.CMSIS.pdsc
index 5914985..8f4e85d 100644
--- a/ARM.CMSIS.pdsc
+++ b/ARM.CMSIS.pdsc
@@ -8,7 +8,16 @@
   <url>http://www.keil.com/pack/</url>
 
   <releases>
-    <release version="5.7.0-rc2">
+    <release version="5.7.1-dev0">
+      Active development ...
+      CMSIS-DSP:
+       - Purged pre-built libs from Git
+      CMSIS-RTOS:
+       - RTX4: Purged pre-built libs from Git
+      CMSIS-RTOS2:
+       - RTX5: Purged pre-built libs from Git
+    </release>
+    <release version="5.7.0" date="2020-04-09">
       CMSIS-Build: 0.9.0 (beta)
         - Draft for CMSIS Project description (CPRJ)
       CMSIS-Core(M): 5.4.0 (see revision history for details)