0.3.6.3 quick release

Enough things are broken by the new CCP4 to make a new version worthwhile:

Changes since 0.3.6.2: Cope with new CCP4.

• Mend xia2 working on Windows.
• Cope with new version of CTRUNCATE in CCP4 6.4.0.
• xia2ccp4i added - thanks to David Waterman.
• Improved handling of nasty image names.
• Mend -reversephi functionality.
• Take spacegroup from reference reflection file correctly.

In the usual place(s)