HADOOP-444 Implement pluggable ASV key encryption
HADOOP-456 Disable leak of info messages to the console from the logger
HADOOP-202: Replace usages of the assert statement in ASV code with proper checks and exception throwing since we never actually exercise that code with asserts enabled
HADOOP-438: disallow just using account names for ASV URI's, and always require full blob endpoint DNS names
Add a missing assumeNotNull() to TestASVUriAndConfiguration so it doesn't fail if a live storage account isn't configured
Add missing @Test tags that were missed in e53b2471c3a715 (ASV encryption, HADOOP-444)
HADOOP-434/HDFS-4782: Backport edit log corruption toleration. (Chris Nauroth via szetszwo)