Removed dead code.
Merge pull request #197 from murrekatt/develop

Removed dead code.
StringUtils: remove str_dup1()
StringUtils: remove len_cmp()
Merge pull request #198 from toxeus/cleanupStringUtils

StringUtils: remove unused functions
opentxs: replace 'false ==' with '!'

Command used:
    sed -i -r 's/( *if \()false == (.*[^\\])$/\1!\2/g' "$file"
Merge pull request #199 from toxeus/cleanupBoolCheck

opentxs: replace 'false ==' with '!'
CMake: add more warning flags
Merge pull request #201 from toxeus/moreWarnings

CMake: add more warning flags
OTAPI_Exec: fix -Wlogical-op

Logical ‘and’ of mutually exclusive tests is always false.
Merge pull request #202 from toxeus/fixLogicalOP

OTAPI_Exec: fix -Wlogical-op
git: improve pre-push hook error message
Merge pull request #204 from toxeus/improveMsg

git: improve pre-push hook error message
CMake: also verify libzmq.so version

Before, we used the libzmq.so symlink to link to ZMQ. This can
be problematic when users have multiple ZMQ installations because
the symlink can point to an arbitrary version.
Initial commit
Merge branch 'develop' of https://github.com/Open-Transactions/opentxs into performance_logger
Merge branch 'zmq3' into performance_logger

ignored, and an empty message aborts
Updates for performance logging