Integrated build script (static/shared/buid-dir/osx).
Patch boost m4 discovery for homebrew.
Fix improper definition of SET_BOOST_TEST_DYN_LINK.
Fix missing libs in test build.
Remove -lboost_unit_test_framework from libbitcoin package config libs.
Merge pull request #112 from evoskuil/version2

Integrated build script (static/shared/build-dir/prefix/osx).