[SERVINF-159] Do not inline TIFF images.

Web browsers cannot show them by default. Image types that are supported by all
of the five main browsers are jpeg, png, gif and bmp [1] so just show them.

[1] http://en.wikipedia.org/wiki/Comparison_of_web_browsers#Image_format_support
[SERVINF-160] Display mime types properly.

Sometimes dashes (-) were being removed.
[SERVINF-162] Link run back to its user.
[SERVINF-161] Fix user display on runs.

Now shows run owner, not current user. This was never an issue for normal users
as they can only see their own runs anyway, but was confusing for admin users.
Bump version number to 0.5.2.
Merge branch '0.5.1-maint'

* 0.5.1-maint:
  [SERVINF-161] Fix user display on runs.
  [SERVINF-162] Link run back to its user.
  [SERVINF-160] Display mime types properly.
  [SERVINF-159] Do not inline TIFF images.