Fix typo
Add 5.0.17 changelog

Fixes https://github.com/owncloud/www/issues/108
improved wording
Grammar fix
Show users an introduction before bug reports
Use protocol relative URL

Otherwise this will fail to load due to insecure content in most browsers by default.
Merge pull request #114 from owncloud/inform-before-bugreport

Show users an introduction before bug reports
Merge pull request #116 from owncloud/protocol-relative

Use protocol relative URL
Merge pull request #112 from owncloud/contribute

improved wording
Merge pull request #110 from owncloud/add-5-0-17

Add 5.0.17 changelog
Merge pull request #109 from owncloud/fix-typo

Fix typo