Remove VMS remnants
Remove dec-mcs remnants

It was (apparently) the default character encoding file used for line
printing on VMS, which is unsupported.
Remove Amiga remnants

Notes regarding the removal of specific items:

  - Aztec C: only on the Amiga.
  - mch_check_win(): doesn't exist anymore.
  - Comment in ex_cmds.c: It seems the context for this comment was
    removed, but the comment was inadvertantly left alone.
Merge pull request #1648 from Pyrohh/amiga-vms-cleanup

Amiga/VMS cleanup
Doxygen find_match_paren().
vim-patch:7.4.350

Problem:    Using C indenting for Javascript does not work well for a {} block
            inside parenthesis.
Solution:   When looking for a matching paren ignore one that is before the
            start of a {} block.

https://code.google.com/p/vim/source/detail?r=v7-4-350
vim-patch:7.4.355

Problem:    Several problems with Javascript indenting.
Solution:   Improve Javascript indenting.

https://code.google.com/p/vim/source/detail?r=v7-4-355
vim-patch:7.4.390

Problem:    Advancing pointer over end of a string.
Solution:   Init quote character to -1 instead of zero. (Dominique Pelle)

https://code.google.com/p/vim/source/detail?r=v7-4-390
Merge pull request #1247 from splinterofchaos/350

vim-patch:7.4.350 + vim-patch:7.4.355 + vim-patch:7.4.390