EasyWinBuilder v0.3
Workaround for a change necessary for the Linux build.
Porting from Bitcoin: "Several shutdown-related fixes"
https://github.com/bitcoin/bitcoin/pull/844
Catch db environment crashes on shutdown (port from Bitcoin) https://github.com/bitcoin/bitcoin/pull/636
Revert "Workaround for a change necessary for the Linux build."

This reverts commit f4be1866eb68e2889c96ac298e43217764ee61aa.
rpc.(cpp|h) renamed to bitcoinrpc.(cpp|h) to work around conflicting file names on Windows
https://github.com/phelixnmc/namecoin-qt/commit/f4be1866eb68e2889c96ac298e43217764ee61aa#commitcomment-4007654
(port from Bitcoin)
Merge pull request #12 from phelixnmc/v0.3.68_ewb

Porting some fixes from Bitcoin, EasyWinBuilder v0.3