Rename "morituri" module to "whipper".

Fixes https://github.com/JoeLametta/whipper/issues/100

whipper/program/flac.py

@@ -0,0 +1,18 @@
+from subprocess import check_call, CalledProcessError
+
+import logging
+logger = logging.getLogger(__name__)
+
+def encode(infile, outfile):
+    """
+    Encodes infile to outfile, with flac.
+    Uses '-f' because morituri already creates the file.
+    """
+    try:
+        # TODO: Replace with Popen so that we can catch stderr and write it to
+        # logging
+        check_call(['flac', '--silent', '--verify', '-o', outfile,
+                    '-f', infile])
+    except CalledProcessError:
+        logger.exception('flac failed')
+        raise