- Update to 1.6.0
    - Improvements to quality tests for speed and accuracy
    - Improvements to language specific quality checks
    - Small improvements to the handling of incorrect PO files
    - Better support for the newer comment types in TS
    - Several small improvements and corrections to XLIFF and TS
    - Many API improvements and cleanups for the upcoming Pootle and Virtaal
    - Fix a bug when Virtaal opened files in paths with non-ASCII characters
    - The Toolkit now always creates headers for PO files
    - A better XML placeable with support for XML namespaces
    - A small bug with a single space unit as seen in abrt (bug 1370). This
        also fixes the resulting error in Virtaal.