Merge pull request #24 from murrekatt/develop

Added submodules for web technologies used by btcd API
Merge pull request #25 from murrekatt/develop

Building submodules as part of Travis
Merge pull request #26 from murrekatt/develop

Updated submodules after proper c++11 flags and include/library paths set
Merge pull request #27 from murrekatt/develop

Fixed typo.
cppcheck: remove suppress statements
Merge pull request #28 from toxeus/updateCppCheck

cppcheck: remove suppress statements
git: add pre-push hook

This pre-push hook invokes cppcheck only for the files touched by the branch
being pushed with respect to upstream's develop branch. Furthermore, only
files inside ./src/ are checked.

This hook assumes the upstream remote to be called 'upstream'. If not existing
it falls back to the remote provided on the git push command line.

The cppcheck message about missing includes is currently suppressed because
of frequent changes in the repo structure.
Merge pull request #29 from toxeus/gitHooks

git: add pre-push hook