365f8d8 Do not return empty balances in omni_getall* RPC calls (zathras-crypto)

Update UI banned list

Align the synccheckpoint config parameter with the RPC command ...

…e-issues

Neil/fix min gas price issues

Fix leftover build environment...

[Trivial] Simulation ending log should be on its own line

0512f05 depends: expat 2.2.7 (fanquake)

Pull request description:

  Major changes in expat 2.2.7:

  * [#186](libexpat/libexpat#186) [#262](libexpat/libexpat#262)  Fix extraction of namespace prefixes from XML names;
                      XML names with multiple colons could end up in the
                      wrong namespace, and take a high amount of RAM and CPU
                      resources while processing, opening the door to use for denial-of-service attacks
  * [#227](libexpat/libexpat#227) Autotools: Add --without-examples and --without-tests

  Full changelog is available [here](https://github.com/libexpat/libexpat/blob/R_2_2_7/expat/Changes#L5).

ACKs for top commit:
  laanwj:
    ACK 0512f05

Tree-SHA512: 45162a9b0011107fd59a97dae7b5eb61989dafbec26b1ee497d1b11bf5c6a119971096899caa2998648b82a62db57c629a1560453557146c2496b39a7f3f8de9

… Peers tab

4e06133 qt: Elide long strings in their middle in the Peers tab (Hennadii Stepanov)

Pull request description:

  The eliding of long addresses (Onion v3 etc) in the Peers tab in their middle was [discussed](bitcoin-core/gui#262 (comment)) in #262.

  On master (f0fa324):
  ![DeepinScreenshot_select-area_20210410141435](https://user-images.githubusercontent.com/32963518/114267903-24eea400-9a07-11eb-8c80-99f68d5cc522.png)

  With this PR:
  ![DeepinScreenshot_select-area_20210410140430](https://user-images.githubusercontent.com/32963518/114267796-83675280-9a06-11eb-921f-ca47c2075496.png)

  This PR suggests the minimal diff to achieve the goal. OTOH, this change in behavior is common for all columns in the Peers table, but it seems harmless.

ACKs for top commit:
  jarolrod:
    tACK 4e06133
  promag:
    Code review ACK 4e06133.

Tree-SHA512: 1d5a62afb1152029e69fccea2ae53dcb262a91724a5c03dfc4de8c409b280814d0c211c2f9a71f1a6e927f4ed571ba4ac311de9de8ebb797eaf1051674241bdb