Improve translation of quickstart (tr)

Improved translation by correcting some spelling mistakes and typos.
Merge pull request #395 from sbagdat/documentation-update

Improve translation of quickstart (tr)
Sync libraries page with English version (it)
Merge pull request #413 from mtylty/updated-library-page-update-it

Sync libraries page with English version (it)
Fix that long strings in code can break the layout - resolves #414
zh-CN home download button text change.
Add Mirror site: ruby.taobao.org, add Mirror site for zh-CN;
Merge pull request #415 from huacnlee/fix_download

Fix download
Sync documentation page with English version (it)
Merge pull request #417 from mtylty/updated-documentation-page-update-it

Sync documentation page with English version (it)
Fix a link in Documentation page (it)
Update Mac OS X Lion support for Ruby 1.8.7 (zh_cn)
added auto-deployment configuration with travis
Merge pull request #419 from hsbt/auto-deployment

added auto-deployment configuration with travis
added custom buildpack url to .travis.yml
fix wrong buildpack url for anvil strategy
(it) update security page

with the latest security news, links to en page for older news. Sync text with en..
more speed-up on travis deployment
Update download page translation (it)
Translate mirror sites countries (it)