move to 0.3.0rc

est/version.py

@@ -78,7 +78,7 @@ RELEASE_LEVEL_VALUE = {
 MAJOR = 0
 MINOR = 3
 MICRO = 0
-RELEV = "dev"  # <16
+RELEV = "rc"  # <16
 SERIAL = 1  # <16
 
 date = __date__