Issue 199: Sort text report.

Allows sorting of the text report based on:
 Name, Stmts, Miss, Cover

Tested on Mac with Python 2.7.11 and Python 3.5

Help message for the new option is:
python -m coverage report -h
  ...
  --sort=SORT           Sort report by a column. Valid values are: Name,
                        Stmts, Miss, Cover.
  ...

1 files changed, 2 insertions, 1 deletions

diff --git a/coverage/control.py b/coverage/control.py
index 97d4625..d41181e 100644
--- a/coverage/control.py
+++ b/coverage/control.py
@@ -943,7 +943,7 @@ class Coverage(object):
     def report(
         self, morfs=None, show_missing=None, ignore_errors=None,
         file=None,                  # pylint: disable=redefined-builtin
-        omit=None, include=None, skip_covered=None,
+        omit=None, include=None, skip_covered=None, sort_name=None
     ):
         """Write a summary report to `file`.
 
@@ -961,6 +961,7 @@ class Coverage(object):
         self.config.from_args(
             ignore_errors=ignore_errors, omit=omit, include=include,
             show_missing=show_missing, skip_covered=skip_covered,
+            sort=sort_name,
             )
         reporter = SummaryReporter(self, self.config)
         return reporter.report(morfs, outfile=file)