Bug fix: when the network is unavailable, gethostbyname will fail without retry
fix search tasks by date
remove line breaks from base64
Remove duplicate code
refactor lixian_tasks to lixian_query
fix list by status
typo fix
display task #n after added
support extending links in new code
introducing the lixian_plugins system
refactor lixian_commands, next refactoring will make it plugin
make extended commands plugins
support user queries