macros.conf: variables; correction for confString, confNumber

This also lets variables, paths, and strings highlight within strings.
eventtypes.conf: Include special stanza

where the eventtype includes a key in it's name ([cisco-%code%] in the .example)
Revert "Change generic stanza from type Special to Function"

This reverts commit a99def455b22bac35d49e330a23fe0ba3ccb8671. Personal
preference -- I'd rather stanzas that are not "special" show as a different
color (i.e. [my_sourcetype] versus [source::tcp:1337]).
Merge branch 'personal' of github.com:pi-rho/vim-splunk into personal