FishEye update to version 4.5

We should update from current FishEye 4.2 to the latest version as they bring some small feature improvements, but mainly some performance and security fixes. See release notes:

• https://confluence.atlassian.com/fisheye/fisheye-4-3-release-notes-869176245.html
• https://confluence.atlassian.com/fisheye/fisheye-4-4-release-notes-890941688.html
• https://confluence.atlassian.com/fisheye/fisheye-4-5-release-notes-937195863.html