add tips.
delete builds
change ascii art logo
add some syntax sugar
getitem:User[id]
getslice:User[id1:id2]
pep style
end limited in 0x7fffffff
Merge branch 'dev'

* dev:
  end limited in 0x7fffffff
  pep style
  add some syntax sugar getitem:User[id] getslice:User[id1:id2]
  change ascii art logo
  delete builds
  add tips.

Conflicts:
	.gitignore
rm .igitignore.orig