Added null checks around getting Jira card type

Added null checks around getting card type method in JIRA integration to
fix issue, ZD 30396 Null ref exception in integration service when
creating cards with JIRA,
https://banditsoftware.leankit.com/Boards/View/304368449/305400991
JIRA search was not returning IssueType field.
Fixed GitHub issue link returns 404
Fixed issue with GitHub state to lane mapping
Fixed GitHub search, fixed card not moving when

...state of issue set to open or closed in GitHub
Merge branch 'master' into Add-Microsoft-Project