[Refs bitcoin#53] (brossi) Update Windows build dependency on libssl1.0.1b to libssl1.0.1g (openssl CVE-2014-0160)

1c7fa13 Add VERIFY_CHECK/DEBUG_CHECK and use CHECK macros more (Pieter Wuille)

5ff7d0c Remove obsolete writing of STO receivers to file (dexX7)
9b0e2f6 As default, set block = -1 in CMPTransaction (dexX7)
4415fc2 Pass CMPTransaction to parseTransaction by reference (dexX7)
aecf5e0 Move simple send checks to the top (dexX7)
5ab54ec Add new log category "packets" (dexX7)
1af418f Move MetaDEx "MSC/TMSC on one side" check into logic function (dexX7)
c5bc248 Remove redundant log entries and print to log (dexX7)
a8ae896 Format CMPTransaction header (dexX7)
423726b Group and tag CMPTransaction members (dexX7)
73bfd7a Interpret transaction packets in one step (dexX7)
6e3dbde Format interpretPacket (dexX7)
a5974d6 Use new methods to parse packet per transaction type (dexX7)
e8b4505 Add packet interpretation methods (dexX7)
c2c8aa8 Move packet parsing into interpretPacket (dexX7)
cdab742 Move step 3 (sp fixed) checks into logic method (dexX7)
23588b4 Move step 3 (sp variable) checks into logic method (dexX7)
276a6b1 Move step 2 (smart property) checks into logic methods (dexX7)
0598a3a Move step 2 (value) checks into logic methods (dexX7)
89976e7 Move logic into seperated logic methods (dexX7)
9c0abc5 Prepare move of logic into seperated logic methods (dexX7)
db08ed9 Reorder interpretPacket based on type (dexX7)
5d41ae8 Restrict access to parseTransaction (dexX7)

remove not needed constant

1.6.4 security updates

Firacode works on KDE4 in some environments at least.

6954156 qt: Fix visual quality of text in QR image (Hennadii Stepanov)
8071c75 qt, refactor: Limit scope of QPainter object (Hennadii Stepanov)

Pull request description:

  Master (197450f):
  ![DeepinScreenshot_select-area_20200824001800](https://user-images.githubusercontent.com/32963518/90988962-96283680-e59f-11ea-8e20-42e9b23033f5.png)

  This PR (6954156):
  - macOS 10.15.6
  ![Screenshot from 2020-09-07 15-40-30](https://user-images.githubusercontent.com/32963518/92390251-2c716600-f123-11ea-96f0-0e9d35810c76.png)

  - Linux Mint 20
  ![Screenshot from 2020-09-07 15-48-13](https://user-images.githubusercontent.com/32963518/92390272-36936480-f123-11ea-8fee-4de23bb40ed9.png)

  Fix #54
  Fix #19103

  ---

  The first commit is easy to review with [`git diff --word-diff`](bitcoin-core/gui@8071c75?w=1).

ACKs for top commit:
  jonasschnelli:
    Tested ACK 6954156 - tested on macOS 10.15. Fixes the problem.

Tree-SHA512: 6ecb3397d2a5094c5f00ee05fc09520751568404e000a8691b6de7e57f38c2d5da628694e5e45a2b4cc302a846bbc00014c40820233eb026d3ebd4f68c2c9913

3589732 Add allowExisting option for name_new. (Daniel Kraft)
8fc3973 Introduce generalised HelpTextBuilder. (Daniel Kraft)

Pull request description:

  As proposed in bitcoin#54, this leverages the new `options` argument to `name_new` to prevent accidental `name_new` transactions where the name exists already.  To do this, we add a new `allowExisting` field in the `options` and only allow sending a `name_new` for an existing name if that option is explicitly set by the user.

  Relative to the current behaviour, this changes the "default" but still keeps the option for power users to override the check and get back the old behaviour.  Also, of course, there are no changes on the consensus level.

Tree-SHA512: c6e549cfab0ce9578a031b4fd8ec95961e67af2fb0481028ffa1c03444795c647dc004080afc76ccbc6175c30745bad068b755e403c9bfcd2fff2ea218ce9c30