If lexer for code hilite not found, return plain text
add watch feature to server
add todo.txt,using sereek/todo
About and config added.
update todo
fix some comments
ready for v0.3.1
initialize author,blog,about etc in models
todo #2,#3 done
rename server to builder. minimal the commands
maybe the serve command is required., and optional `watch`
finally, use serve command and watch option
add time for logger
standard the output format of server
fix some docstring
catch exception for feed add
templates to theme
Update to v0.3.1
Merge branch 'dev'

* dev:
  Update to v0.3.1
  templates to theme
  catch exception for feed add
  fix some docstring
  standard the output format of server
  add time for logger
  finally, use serve command and watch option
  maybe the serve command is required., and optional `watch`
  rename server to builder. minimal the commands
  todo #2,#3 done
  initialize author,blog,about etc in models
  ready for v0.3.1
  fix some comments
  update todo
  About and config added.
  add todo.txt,using sereek/todo
  add watch feature to server
  If lexer for code hilite not found, return plain text