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.

3 files changed, 51 insertions, 0 deletions

diff --git a/.be/bea86499-824e-4e77-b085-2d581fa9ccab/bugs/496edad5-1484-413a-bc68-4b01274a65eb/comments/8d927822-eff9-42c4-9541-8b784b3f7db2/body b/.be/bea86499-824e-4e77-b085-2d581fa9ccab/bugs/496edad5-1484-413a-bc68-4b01274a65eb/comments/8d927822-eff9-42c4-9541-8b784b3f7db2/body
new file mode 100644
index 0000000..dfcf82c
--- /dev/null
+++ b/.be/bea86499-824e-4e77-b085-2d581fa9ccab/bugs/496edad5-1484-413a-bc68-4b01274a65eb/comments/8d927822-eff9-42c4-9541-8b784b3f7db2/body
@@ -0,0 +1,29 @@
+I was having problems with `python test.py bugdir` with the Arch
+backend.  Commits were failing with `archive not registered'.
+
+Adding some trace information to arch.Arch._rcs_init() and
+._rcs_cleanup() (the traceback module is great :p), I found
+that the problem was coming from bugdir.BugDir.guess_rcs().
+
+The Arch backend deletes any auto-created archives when it is cleaned
+up (RCS.__del__ -> RCS.cleanup -> Arch._rcs_cleanup).  This means that
+whatever instance is used to init the archive in guess_rcs() must be
+kept around.  I had been doing:
+  * installed_rcs() -> Arch-instance-A
+  * Arch-instance-A.init()
+  * store Arch-instnance-A.name as bugdir.rcs_name
+  * future calls to bugdir.rcs get new instance Arch-instance-B
+  * eventually Arch-instance-A cleaned up
+  * archive dissapears & tests crash
+
+I switched things around so .rcs is the `master attribute' and
+.rcs_name follows it.  Now just save whichever rcs you used to init
+your archive as .rcs.
+
+In order to implement the fix, I had to tweak the memory/file-system
+interaction a bit.  Instead of saving the settings *every*time* a
+setting_property changed, we now save only if the .be file exists.
+This file serves as a 'file-system-bugdir-active' flag.  Before it is
+created (e.g., by a .save()), the BugDir lives purely in memory, and
+can freely go about configuring .rcs, .rcs_name, etc until it get's
+to the point where it's ready to go to disk.
diff --git a/.be/bea86499-824e-4e77-b085-2d581fa9ccab/bugs/496edad5-1484-413a-bc68-4b01274a65eb/comments/8d927822-eff9-42c4-9541-8b784b3f7db2/values b/.be/bea86499-824e-4e77-b085-2d581fa9ccab/bugs/496edad5-1484-413a-bc68-4b01274a65eb/comments/8d927822-eff9-42c4-9541-8b784b3f7db2/values
new file mode 100644
index 0000000..e9bbdac
--- /dev/null
+++ b/.be/bea86499-824e-4e77-b085-2d581fa9ccab/bugs/496edad5-1484-413a-bc68-4b01274a65eb/comments/8d927822-eff9-42c4-9541-8b784b3f7db2/values
@@ -0,0 +1,8 @@
+Author: W. Trevor King <wking@drexel.edu>
+
+
+Content-type: text/plain
+
+
+Date: Sat, 22 Nov 2008 18:53:20 +0000
+
diff --git a/.be/bea86499-824e-4e77-b085-2d581fa9ccab/bugs/496edad5-1484-413a-bc68-4b01274a65eb/values b/.be/bea86499-824e-4e77-b085-2d581fa9ccab/bugs/496edad5-1484-413a-bc68-4b01274a65eb/values
new file mode 100644
index 0000000..2ef6ea3
--- /dev/null
+++ b/.be/bea86499-824e-4e77-b085-2d581fa9ccab/bugs/496edad5-1484-413a-bc68-4b01274a65eb/values
@@ -0,0 +1,14 @@
+creator: W. Trevor King <wking@drexel.edu>
+
+
+severity: minor
+
+
+status: fixed
+
+
+summary: Early del-cleanup with Arch backend
+
+
+time: Sat, 22 Nov 2008 18:38:32 +0000
+