updated for version 7.3.887
Problem:    No tests for Visual mode operators, what 7.3.879 fixes.
Solution:   Add a new test file. (David Bürgin)
Added tag v7-3-887 for changeset 015e53d99787
updated for version 7.3.888
Problem:    Filename completion with 'fileignorecase' does not work for
	    multi-byte characters.
Solution:   Make 'fileignorecase' work properly. (Hirohito Higashi)
Added tag v7-3-888 for changeset b0b253898cf9
Updated runtime files.