* add more ducking command
* fix current music command
* provide more controls, like pause, resume, clear.
* add more controls in the web interface
* refactored and improved:
1. move get_music_tag_info to util, and
2. refined logic related to it.
3. now playlist will check for tag info thus update_music_tag_info is
useless and was removed
4. add "add folder" feature to !file asked in #65,
5. fix bugs related to !file
* truncate file list if too long
* fixed several tiny bugs
* fixed several tiny bugs continue
* fixed several tiny bugs continue continue
* fixed several tiny bugs continue**3
* fixed several tiny bugs continue**4
* added !filematch command to add files that match a regex pattern.
* truncate long message
* fix web interface delete file issue
* refresh after delete file
* add regex to listfile command
* refactored command part, added partial match support for commands
* organized
* added random command
* typo
* typo
* Fixed many bugs.
* Added workaround for azlux/pymumble#44 to fix the memory leak.
* changed logging style.
* fixed bugs related to random and resume
* fix now playing
* fixed issue related to download
* fixed issue related to download 2
* fixed thumbnail issue
* fixed add url problem in web interface
* REFACTORED, turned db.ini into sqlite3 database.
* fixed remove song problem
* fixed radio get title problem. auto download if tmp file is deleted
* fixed current index not loaded from database
* fixed: order of songs loaded from the database
* fixed: some obscure bugs. beautified error of commands
* added a workaround for TerryGeng/botamusique#1.
* beautified
* fixed: channel not loaded in the config
* fixed: auto checked for updates
* fixed: mysterious bug: sometimes "now playing" string cannot be properly
displayed.
The real reason is: do use <br />, do not use <br>. I tried hours to
find out this.
* chore: unified debug messages that refer to music items
* feav: fetch ffmpeg stderr mentioned in #72, reformatted logs.
* fix: async download not working
* fix: async download not working, still
* fix: async download not working, finished
* feat: queue command: ▶current playing item◀
* feat: support more than one command prefix
* chore: added some WARNINGs into default config file to avoid people to touch it.
* refactor: packed all string contants into constants.py, just to avoid people messing it around.
* refactor: required by azlux. Added a configuration.example.ini to keep people away from configuration.default.ini
