Fix getbalance discrepency

Two changes:

Use IsConfirmed() instead of IsFinal(), so 'getbalance "*" 0' uses the same
'is this output spendable' criteria as 'getbalance'. Fixes issue #172.

And a tiny refactor to CWallet::GetBalance() (redundant call to IsFinal -- IsConfirmed
calls IsFinal).
getbalance with no arguments and 'getbalance "*" 0' could return different different results,
Bugfix: makefile.linux-mingw: Fix so passed CXXFLAGS/LDFLAGS work correctly
Bugfix: makefile.unix: Honour BOOST_LIB_SUFFIX on boost_unit_test_framework
add address and account information to listunspent
Also copy the address to the X11 clipboard (the one you middle-click to paste)
harmonize 2 init messages and remove one

- harmonize the database related init messages
- as we have a thread for importing blocks, that init message is obsolete
Bitcoin-Qt: massive header and cpp cleanup

- try to enforce the same style to all Qt related files
- remove unneeded includes from the files
- add missing Q_OBJECT, QT_BEGIN_NAMESPACE / QT_END_NAMESPACE
- prepares for a pull-req to include Qt5 compatibility
CheckBlock rule until 15-May for 10,000 BDB lock compatibility
Before 15 May, limit created block size to 500K
Checkpoint at first block in 11 March chain fork
Update unit test to match rule enforcement starts 21 March
Merge pull request #2210 from Diapolo/Qt_header_cpp_cleanup

Bitcoin-Qt: massive header and cpp cleanup
Bitcoin-Qt: add "send coins" to context menu in addressbook

- allows to directly select an address from the addressbook, chose "send
  coins" from the context menu, which sends you to sendcoins tab and fills
  in the selected address
update bitcoin_en.ts and bitcoinstrings.cpp
Bitcoin-Qt: update Win executable file meta-data copyright
re-enable -D_FORTIFY_SOURCE=2 for all platforms
Some unit tests for CAlert
Merge pull request #2382 from Diapolo/2013

Bitcoin-Qt: update Win executable file meta-data copyright
Merge pull request #2376 from Diapolo/pro-file

re-enable -D_FORTIFY_SOURCE=2 for all platforms
Merge pull request #2332 from Diapolo/init_messages

harmonize 2 init messages and remove one