Enable OSX builds for Travis CI. Created bootstrapping for thrird party dependencies.
No need to sudo for brew. Also minor fix in running install script.
brew fixes and removed zmq.
Installing openssl with brew.
Merge pull request #162 from murrekatt/develop

Travis configuration to build on OSX too
Let Travis update online documentation (Doxygen) at every upstream change
https://open-transactions.github.io/Documentation/
Merge pull request #166 from lclc/travisGithubPageDoxygen

Travis github page doxygen
Let travis only update documentation if changes in master
travis docu fix
Merge pull request #167 from lclc/travisGithubPageDoxygen

Travis github page doxygen fix
Properly deallocation of memory.
Merge pull request #170 from murrekatt/develop

Properly deallocation of memory
Fix gtest for "make distcheck" (tarball build).
Reinstate gtest internal dependency build.
Merge pull request #169 from randy-waterhouse/develop

Fix gtest for "make distcheck" (tarball build).