Expand user in basepath

doc/changelog.txt

@@ -1,3 +1,10 @@
+Dosage 2.12 (released xx.xx.2014)
+
+Changes:
+- cmdline: The --basepath option now replaces "~" or "~user" with the
+  users home directory.
+
+
 Dosage 2.11 (released 15.1.2014)
 
 Features:

dosage

@@ -482,8 +482,9 @@ def warn_adult(scraperclass):
 def main():
     """Parse options and execute commands."""
     try:
-        parser = setupOptions()
-        res = run(parser.parse_args())
+        options = setupOptions().parse_args()
+        options.basepath = os.path.expanduser(options.basepath)
+        res = run(options)
     except KeyboardInterrupt:
         print("Aborted.")
         res = 1