update makeprg builder:
* it now accepts `fname`, `tail`, and `post_args` params.
* add some doc above syntastic#makeprg#build
* update a bunch of checkers to use the new params
Still have quite a few checkers that arent using makeprg#build.
Including all c* and a few other c-like checkers. And PHP.
Not to worried about c* as these checkers are complicated and probably
justify having their own logic to build makeprgs.
Make all the easy updates. There are still quite a few to do, but in
doing these ones I can see that syntastic#makeprg#build() needs to
accept a few more options. Namely:
* "postargs" that appear after the filename
* "tail" that appears after everything - used for things like
redirecting output and piping to grep/sed/etc
* the filename itself - only the java checkers needed this since they
specify the directory of the file to check as well
There are still a few other things to do as well:
* remove the options from the checkers that are now provided by
syntastic#makeprg#build implicitly - i.e. the checker exe and args.
* also, we need to doc the above implicit checker options
The HTML5 <source> tag throws an error when using Tidy since exceptions
have been made for audio and video, we should also support the source
tag which can exist inside these calls.
Previously the 2 checkers were in the same file - this is more "tidy"
(lol??).
Currently the logic to determine which checker is loaded is custom to
the checker. At some point the SyntasticLoadChecker() function should be
upgraded to be able to handle cases (like this one) where the name of
the checker doesnt imply the name(s) of the executables that have to be
checked for.
