commandhandler: initialize @found pointer in split()

Our found variable, didn't initialized before, and in some cases it can
hit a false result, but the only condition when it can return not
correct vector is when found==end, end it is very rare.

CID: 14509 # Founded by coverity.com
test/travis-ci: drop addons/coverity_scan from master branch

It's too heavy to do this on every commit into master, create another
branch - "coverity" with this addon, patches will be merged to this
branch for coverity scan.
vim: add config and don't ignore it
assert: add BUG() macros, that didn't respect NDEBUG macro
Merge branch 'master' into coverity

* master:
  assert: add BUG() macros, that didn't respect NDEBUG macro
  vim: add config and don't ignore it
  test/travis-ci: drop addons/coverity_scan from master branch
  commandhandler: initialize @found pointer in split()

Conflicts:
	.travis.yml