patch 7.4.1615

Problem:    Build fails with tiny features.
Solution:   Adjust #ifdefs.

patch 7.4.1614

Problem:    Still quickfix test in old style.
Solution:   Turn test 10 into a new style test.

patch 7.4.1613

Problem:    Still can't build with small features.
Solution:   Adjust #ifdefs.

patch 7.4.1612

Problem:    Can't build with small features.
Solution:   Move code and #ifdefs.

patch 7.4.1611

Problem:    The versplit feature makes the code uneccessary complicated.
Solution:   Remove FEAT_VERTSPLIT, always support vertical splits when
            FEAT_WINDOWS is defined.

patch 7.4.1610

Problem:    Compiler warnings for non-virtual destructor.
Solution:   Mark the classe final. (Ken Takata)

patch 7.4.1609

Problem:    Contents file is only for Amiga distro.
Solution:   Move it to "READMEdir".  Update some info.

patch 7.4.1608

Problem:    string() doesn't handle a partial.
Solution:   Make a string from a partial.

patch 7.4.1607

Problem:    Comparing a function that exists on two dicts is not backwards
            compatible. (Thinca)
Solution:   Only compare the function, not what the partial adds.

patch 7.4.1606

Problem:    Having type() handle a Funcref that is or isn't a partial
            differently causes problems for existing scripts.
Solution:   Make type() return the same value. (Thinca)