Log Message:
Changes 1.0.3:
- Fix insert-signature command in external compose window if opened from inline \ 
compose screen
- Initialize HTML editor before restoring a message from localStorage
- Add 'sig_max_lines' config option to default config file
- Add option to specify IMAP connection socket parameters - imap_conn_options
- Add option to set default message list mode - default_list_mode
- Enable contextmenu plugin for TinyMCE editor
- Fix some mime-type to extension mapping checks in Installer
- Fix errors when using localStorage in Safari's private browsing mode
- Fix bug where $Forwarded flag was being set even if server didn't support it
- Fix various iCloud vCard issues, added fallback for external photos
- Fix invalid Content-Type header when send_format_flowed=false
- Fix errors when adding/updating contacts in active search
- Fix incorrect thumbnail rotation with GD and exif orientation data
- Fix contacts list update after adding/deleting/moving a contact
- Fix handling of email addresses with quoted domain part
- Fix comm_path update on task switch
- Fix error in MSSQL update script 2013061000.sql
- Fix validation of email addresses with IDNA domains