Add to release docs. Typo correction, direction on using mercurial to

find new files between two revisions.

Update MANIFEST.in. New file detectors/README.txt added. Include
roundup favicon, tools/base64, exclude development dregs (*.orig, *~
etc.)

Author: rouilj

MANIFEST.in

@@ -2,13 +2,13 @@ recursive-include share *
 recursive-include roundup *.*
 recursive-include frontends *.*
 recursive-include scripts *.* *-*
-recursive-include tools *.*
+recursive-include tools *.* base64
 recursive-include test *.py *.txt
 recursive-include doc *.html *.png *.txt *.css *.example
-recursive-include detectors *.py
-global-exclude *.pyc *.pyo .DS_Store
+recursive-include detectors *.py README.txt
+global-exclude *.pyc *.pyo .DS_Store *.orig *.rej *~ \#*
 include run_tests.py demo.py *.txt
-include doc/conf.py
+include doc/conf.py doc/roundup-favicon.ico
 exclude 2to3-done.txt
 exclude doc/security.txt
 include locale/*.po locale/*.mo locale/roundup.pot

RELEASE.txt

@@ -18,13 +18,16 @@ Roundup release checklist:
     check that metadata is valid and long descriptions is proper reST:
       python setup.py check --restructuredtext --metadata --strict
 5.  Clean out all *.orig, *.rej, .#* files from the source.
-6.  Remove previuos build files
+6.  Remove previous build files
       python setup.py clean --all
 7.  Rebuild documentation in "share/doc/roundup/html"
       python setup.py build_doc
 8.  python setup.py sdist --manifest-only
-9.  Check the MANIFEST to make sure that any new files are included. If
-    they are not, edit MANIFEST.in to include them. For format docs see
+9.  Check the MANIFEST to make sure that any new files are included.
+      (use hg status --rev <last release or tag>:tip to list changed
+      added and removed files. Last release e.g. 1.5.1 where tip was
+      what would become 1.6)
+    If they are not, edit MANIFEST.in to include them. For format docs see
     http://docs.python.org/2/distutils/sourcedist.html#manifest-template
 10. python setup.py sdist
     (if you find sdist a little verbose, add "--quiet" to the end of the