Bugfix: configure: Allow user-provided CXXFLAGS to override default optimisation, debug, and warning flags
Cleanup LevelDB library dependencies
configure: Internal changes to make building bitcoind optional
configure: Change --with[out]-qt to --enable-frontends=bitcoind,bitcoin-qt to support more build configurations
configure: Minor grammatical changes to be more clear
Bugfix: Undefine _FORTIFY_SOURCE before redefining it, to avoid warnings on compilers that define it by default
qt: show all units in send confirmation

Make users accustomed to the other subdivision units (mBTC, muBTC)
by showing the total amount in all units in the confirmation dialog.

This was recently raised on the mailing list and could be a preparation
for switching over the default unit eventually.
Remove '/': prefix always starts with '/'

brew --prefix retruns a fully qualified path, so using -L/$prefix results in a path with two leading '/'.
Merge pull request #3299

c89d59c Remove '/': prefix always starts with '/' (Florin)
Merge pull request #3273

fb0507f qt: show all units in send confirmation (Wladimir J. van der Laan)
Bugfix: Use BOOST_CPPFLAGS when testing for boost sleep vs sleep_for
Merge branch 'autoconf_pt3' of https://github.com/luke-jr/bitcoin
Initial Commit
Fix failing unit tests on OSX / Boost 1.54