[Qt] Fix coin control qt5 checkbox bug in tree mode
minor style cleanups

Conflicts:

	src/main.cpp
Fix missing wallet lock in CWallet::SyncTransaction(..)
[Qt] Fill in label from address book also for URIs
Adjust branding in datadir lock error message
Conflicts:

	src/init.cpp
Add a "relayfee" field to getinfo.

This shows the minimum relay fee for non-free transactions in btc/kb.

The armory developers requested this so that they can prevent users from
 creating transactions that not even their local bitcoind will relay.

This also slightly reorders the getinfo output so that the fee related
 lines are grouped and changes the help text to reflect that the units
 are btc/kb.

Conflicts:

	src/rpcmisc.cpp
Replaced references to "btc" with "doge".
qt: Show also value for options overridden on command line

Currently only the name of the option is shown for GUI options
overridden by command line (or configuration file). This commit
adds the value of the options as well, which is useful for
troubleshooting.
[Qt] Dont set table color in coin control
Updated client version 1.7.2 and marked it as non-release.
qt: change CT_NOW string to CT_NEW in log message

Closes #3852.

Rebased-By: Wladimir J. van der Laan <laanwj@gmail.com>
Rebased-From: 5f2907a, 88d3df4
Add licenses for tests and test data

- Add license headers to source files (years based on commit dates)
  in `src/test` as well as `qa`
- Add `README.md` to `src/test/data` specifying MIT license

Fixes #3848
Fixed compile error on Debian jessie (gcc version 4.8.2 (Debian 4.8.2-16))
Updated version in main README.
build: build qt tests after qt libs/executable

Autotools defaults to a depth-first recursion which causes the qt tests
to be built before the executables and libraries.

This is inconvenient as make needs to be called twice to make sure the
tests are up to date after changing a source file.

Update the Makefile.am to change this order.
Fix importwallet nTimeFirstKey
Merge pull request #525 from rnicoll/1.7.2-dev

Merge Bitcoin 0.9.2 patches into Dogecoin