Merge pull request #6 from toxeus/sharedZMQ

CMake: used ZMQ shared lib for opentxs shared lib
Generated new AWS S3 deployment secret key after re-fork of repo.
CMake: fix include workaround for OS X
Merge pull request #9 from murrekatt/develop

CMake: fix include workaround for OS X
Removed Windows warning about GCC pragma
Fixed crash in OT-Armor decompression when trying to decompress plaintext
Removed unused parameter from OT_Command::details_refresh_nym
Aligned colons in output in MadeEasy::stat_asset_account
Fixed several functions that return an amount to return OT_ERROR_AMOUNT
 instead of -1 which could be a valid amount.
 This was an artifact of the conversion from string to int64_t.
Merge pull request #10 from toxeus/bug_fixes

Bug fixes
travis: install new CMake on OS X

Before, the attempt to install a new version of CMake with Homebrew
failed because there already was an installed CMake version.
Merge pull request #14 from toxeus/travisPath

travis: install new CMake on OS X
Delete unused fast_mutex.h
Merge pull request #3 from lclc/deleteFastMutex

Delete unused fast_mutex.h
restore old pkg-config file
cmake install pkg-config
Merge pull request #16 from da2ce7/pkg_config

cmake install pkg-config
cppcheck: fix variableScope in opentxs-core
Merge pull request #15 from toxeus/fixScope

cppcheck: fix variableScope in opentxs-core
Convert api lib to stream logging