Merge pull request #11 from yhuelf/master

vim plugin: small improvement
add match on identifier name

This may looks stupid a it is equivalent to grep but it can really
reduce the number of match if combined with the support of define.
For example, I've get from 1811 matches to 7 (and only in wanted
code) by excluding unit tests in suricata:
 coccigrep -t DetectEngineCtxFree -o named  -U UNITTESTS src/
vim: correctly indent file
Improve accuracy

This patch adds the "recursive-includes" option to spatch. This
allows to get information about a bigger part of the code. The
result is match that where not found before.
Preparing 1.13
README: add section "Current limitations"