Rationalize logging statements across codebase

This fixes up the following problems:
1. Using string concatenation instead of the formatting variant methods.
2. Logging or swallowing exception messages without logging the exception
   itself (this swallows the stack trace).
3. Unnecessary logging on re-thrown exceptions.
4. Unnecessary use of formatting variant methods when not necessary.
5. Complicated logging statements involving significant processing not being
   wrapped inside of a logging level check.
6. Redundant logging both of an exception itself and its message (this is
   unnecessary duplication).
7. Use of the base Logger class instead of our FormattingLogger class.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=182419837

java/google/registry/tmch/TmchSmdrlAction.java

@@ -56,7 +56,8 @@ public final class TmchSmdrlAction implements Runnable {
     }
     SignedMarkRevocationList smdrl = SmdrlCsvParser.parse(lines);
     smdrl.save();
-    logger.infofmt("Inserted %,d smd revocations into Datastore, created at %s",
+    logger.infofmt(
+        "Inserted %,d smd revocations into Datastore, created at %s",
         smdrl.size(), smdrl.getCreationTime());
   }
 }