Merged be.restructure, major internal reorganization.

Added a bunch of classes to make the commands, user interfaces, and
storage backends more abstract and distinct.  This should make it much
easier to extend and maintain BE.

Features:
 * Directory restructured:
   becommands/ -> libbe/commands
   submods sorted by functionality.
 * Lots of new classes:
   Option, Argument, Command
   InputOutput, StorageCallbacks, UserInterface
   Storage
 * Consolidated ID handling in libbe.util.id
 * Transitioned VCS backends for Python-based VCSs from subprocess
   calss to internal python calls.

Plus the user-visible changes:
 * New bugdir/bug/comment ID format replaces old bug:comment format.
 * Deprecated support for `be diff` on Arch and Darcs <= 2.3.1.  A new
   backend abstraction (Storage) makes the former implementation
   ungainly.
 * Improved command completion.
 * Removed commands close, open, email_bugs, 
 * Flipped some arguments
   `be assign BUG-ID [ASSIGNEE]` -> `be status ASSIGNED BUG-ID ...`
   `be severity BUG-ID SEVERITY` -> `be severity SEVERITY BUG-ID ...`
   `be status BUG-ID STATUS` -> `be status STATUS BUG-ID ...`

In the merge:
  * Added 'commit' to list of pagerless commands.
  * Updated doc/README.dev

See
#bea86499-824e-4e77-b085-2d581fa9ccab/1100c966-9671-4bc6-8b68-6d408a910da1#
for a discussion of why the changes were made and some of the
difficulties en-route.

2 files changed, 110 insertions, 0 deletions

diff --git a/.be/bea86499-824e-4e77-b085-2d581fa9ccab/bugs/529c290e-b1cf-4800-be7e-68f1ecb9565c/comments/2c95ee07-462d-42cf-8dc3-8f5389a392cb/body b/.be/bea86499-824e-4e77-b085-2d581fa9ccab/bugs/529c290e-b1cf-4800-be7e-68f1ecb9565c/comments/2c95ee07-462d-42cf-8dc3-8f5389a392cb/body
new file mode 100644
index 0000000..5f478b5
--- /dev/null
+++ b/.be/bea86499-824e-4e77-b085-2d581fa9ccab/bugs/529c290e-b1cf-4800-be7e-68f1ecb9565c/comments/2c95ee07-462d-42cf-8dc3-8f5389a392cb/body
@@ -0,0 +1,96 @@
+-----BEGIN PGP SIGNED MESSAGE-----
+Hash: SHA1
+
+W. Trevor King wrote:
+> Thinking about this some more, I think that the role of the
+> main-branch is to officially sanction the current state of the code as
+> "released".  If a series of commits will leave a branch in a
+> known-unusable form, they should be carried out in some appropriately
+> named development branch.  Then the log of commits to the main branch
+> ("bzr log -n 1" for bzr > ) should produce a fairly respectable
+> changelog.
+
+This is how we develop bzr itself.  The mainline is controlled by PQM,
+which is a tool that merges feature branches, runs the tests, and
+commits only if the tests pass.
+
+$ bzr log --short --limit 10
+ 4534 Canonical.com Patch Queue Manager	2009-07-14 [merge]
+      (abentley) Implement merge --interactive
+
+ 4533 Canonical.com Patch Queue Manager	2009-07-14 [merge]
+      (jml) Merge in changes from 1.17 branch.
+
+ 4532 Canonical.com Patch Queue Manager	2009-07-14 [merge]
+      (igc) zc.buildout Windows build support (Sidnei da Silva)
+
+ 4531 Canonical.com Patch Queue Manager	2009-07-13 [merge]
+      (vila) Delete forgotten debug print
+
+ 4530 Canonical.com Patch Queue Manager	2009-07-13 [merge]
+      (vila) Isolate some tests from TZ
+
+ 4529 Canonical.com Patch Queue Manager	2009-07-13 [merge]
+      (igc) Bazaar 2.0 Upgrade Guide
+
+ 4528 Canonical.com Patch Queue Manager	2009-07-13 [merge]
+      (mbp) correction to news
+
+ 4527 Canonical.com Patch Queue Manager	2009-07-13 [merge]
+      (jml) Merge in 1.17 branch, updating version numbers and NEWS file.
+
+ 4526 Canonical.com Patch Queue Manager	2009-07-10 [merge]
+      (mbp, vila) Finish the *_implementation to per_* test renaming
+
+ 4525 Canonical.com Patch Queue Manager	2009-07-10 [merge]
+      (vila) Quicker check for changes in mutable trees
+
+You can also see all the merges as they come into the mainline:
+
+$ bzr log --short --limit 10 --include-merges
+ 4534 Canonical.com Patch Queue Manager	2009-07-14 [merge]
+      (abentley) Implement merge --interactive
+
+      4526.6.15 Aaron Bentley	2009-07-14
+                Update command help
+
+      4526.6.14 Aaron Bentley	2009-07-14
+                Use default DiffWriter.
+
+      4526.6.13 Aaron Bentley	2009-07-14
+                Add docstring to do_interactive.
+
+      4526.6.12 Aaron Bentley	2009-07-14
+                Updates from review.
+
+      4526.6.11 Aaron Bentley	2009-07-13
+                Update NEWS.
+
+      4526.6.10 Aaron Bentley	2009-07-13 [merge]
+                Merged apply-vocab into merge-interactive.
+
+           4526.7.4 Aaron Bentley	2009-07-13 [merge]
+                    Merged bzr.dev into apply-vocab.
+
+       4526.6.9 Aaron Bentley	2009-07-13 [merge]
+                Merged apply-vocab into merge-interactive.
+
+           4526.7.3 Aaron Bentley	2009-07-13
+                    Test shelve_change.
+
+> This also means that _every_commit_ to a main branch would
+> be an official release.
+
+We don't do that.  We have official releases every 4 weeks, but we do
+believe that running bzr.dev is pretty safe, because it's always tested
+and our test suite is quite thorough.
+
+Aaron
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diff --git a/.be/bea86499-824e-4e77-b085-2d581fa9ccab/bugs/529c290e-b1cf-4800-be7e-68f1ecb9565c/comments/2c95ee07-462d-42cf-8dc3-8f5389a392cb/values b/.be/bea86499-824e-4e77-b085-2d581fa9ccab/bugs/529c290e-b1cf-4800-be7e-68f1ecb9565c/comments/2c95ee07-462d-42cf-8dc3-8f5389a392cb/values
new file mode 100644
index 0000000..8cfe1b0
--- /dev/null
+++ b/.be/bea86499-824e-4e77-b085-2d581fa9ccab/bugs/529c290e-b1cf-4800-be7e-68f1ecb9565c/comments/2c95ee07-462d-42cf-8dc3-8f5389a392cb/values
@@ -0,0 +1,14 @@
+Alt-id: <4A5CCE76.9040106@aaronbentley.com>
+
+
+Author: Aaron Bentley <aaron@aaronbentley.com>
+
+
+Content-type: text/plain
+
+
+Date: Tue, 14 Jul 2009 14:29:10 -0400
+
+
+In-reply-to: ae4f8f1e-6f86-4f81-ba9f-4042deb2ee68
+