fix build

add CONTRIBUTING.md to Makefile.am and license.skip
remove duplicate file from Makefile.am

This closes #184

Signed-off-by: Alexander Shorin <kxepal@apache.org>
Fauxton: remove caching
encoded attachment name
spell checking my-first-couchdb-plugin's README
Merge branch 'my-first-couch-plugin-readme-typos' of https://github.com/marianoguerra/couchdb

* 'my-first-couch-plugin-readme-typos' of https://github.com/marianoguerra/couchdb:
  spell checking my-first-couchdb-plugin's README

This closes #185
update opening note
update clone command to clone from github repo

since this already works on main couchdb.
Merge branch 'my-first-couch-plugin-readme-typos'

'my-first-couch-plugin-readme-typos' of https://github.com/marianoguerra/couchdb

* update opening note 868e171
* update clone command to clone from github repo

This closes #186
Fauxton: fix navigating back to previous page

Fixes #COUCHDB-2169