Backend roadmap for making moggie 1.0 possible

[BjarniRunar]

This expands on the moggie 1.0 section of Issue #1, taking the list of user-visible feature goals, and mapping them to back-end capabilities and API endpoints / CLI tools.

Common back-end features not directly related to list in Issue #1:

• Encrypted search index for handling sensitive data
• Logging
• Microservice framework to avoid the Python GIL
• Configuration system, with partial encryption for sensitive data
• i18n support for translating the software itself
• Test suite for avoiding regressions (black-box for CLI API, unit tests for internal)
• Command-line and WEB API framework
• Remote access to Web API (PageKite)
• CLI/WEB API documentation framework
  • moggie help
  • generate man pages
  • generate web pages

Basic non-networked features:

• Read local (mbox, Maildir) email
  • moggie search mailbox:/path/to/file/...
• Handle attachments
  • moggie.storage.files
  • moggie.email.parsemime
  • moggie parse
• Delete email from local (mbox, Maildir) mailboxes
  • moggie.storage.files
  • moggie delete
• Move email from one mailbox to another
  • moggie.storage.files
  • moggie move, moggie copy ?
• Notify user that new mail has arrived
  • moggie.workers.remote - IMAP IDLE support
  • moggie new
• Add messages to a search engine
  • moggie.workers.importer
  • moggie import
  • moggie new
• Allow user to search for mail
  • moggie.workers.search
  • moggie search
• Handle message threads correctly
  • moggie.app.core.api_req_mailbox (also detect threads within a single mailbox)
  • moggie.email.metadata
  • moggie search
  • moggie parse
• Display HTML and text content
  • moggie.security.html
  • moggie parse
  • [x ] moggie show
• Compose
  • moggie address - for address autocompletion
  • moggie email
• Reply
  • moggie email --forward
  • moggie reply
• Forward
  • moggie email --forward
  • moggie forward
• Send (local sendmail)
  • moggie.util.sendmail
  • moggie email --send-via
  • moggie send in:outbox
• Tag / untag emails manually
  • moggie tag
• Tag / untag emails automatically (manual filters and bayesian)
  • moggie.search.filters
  • moggie filter

Networking capabilities:

• Read remote (IMAP, POP3) email
  • Handle authentication failures, prompt user for username/password
  • moggie.workers.storage
• Delete / move email from remote (IMAP, POP3) mailboxes
  • moggie.workers.storage
  • moggie delete
  • moggie move
• Send (SMTP/submission)
  • moggie.util.sendmail
  • moggie email --send-via
  • moggie send