Bumped version number to 1.1.6
Merge branch 'release/1.1.6' into develop

Release 1.1.6

This release fixes two bugs, including a critical bug that can cause unwanted duplication of tasks (Issue #24).

Fixed:

Closes Issue #23: bug: Adding task with priority enters start date at wrong location.

Closes Issue #24: bug: Reload while filtered on context shows duplicate events.