<issue_start><issue_comment>Title: Suggestions should ignore letter case
username_0: ![image](https://user-images.githubusercontent.com/1580663/29337642-4d387226-8212-11e7-842d-fc9653f7f702.png)

Developers aren't suppose to remember if it is `.Host` or `.host`.
<issue_comment>username_1: See Settings (Preferences) | Editor | General | Code Completion | Case sensitive completion. The default value is 'First letter'. You may change it to 'None'.<issue_closed>
<issue_comment>username_0: Thank you. Sorry for the noise.