Input-number: fix input-number style in form & Tag: fix a mistake in the doc

Update gitter link

Add a Gitter chat badge to README.md

Update changelog

package: remove postinstall hook

fix a slider bug

Steps: fix line

Upload: update doc

v1.0.0-rc.2

package: add lint script & lock vue version

update pagination

Upload: missing headers

fix textarea style in form

Update config, default require commonjs package

Add changelog

use hash

fix tree bugs

Popover: add reference slot

Update package.json scripts, fixed #30

docs update