"Hotfixes" from master (#72)

* Typo : max block size (#42)

* config - Travis config update (#44)

- Temporary fix for deploy 1.9 issue

* content - Remove outdated Payment Processor link

* [Rebrand] Update main logo

* [Rebrand] Update SVG log

* [Rebrand] Update icon

* [Rebrand] Main logo adjustment

_includes/devdoc/ref_block_chain.md

@@ -218,7 +218,7 @@ of blocks in regtest mode.
 {% autocrossref %}
 
 Under current consensus rules, a block is not valid unless its
-serialized size is less than or equal to 1 MB. All fields described
+serialized size is less than or equal to 2 MB. All fields described
 below are counted towards the serialized size.
 
 | Bytes    | Name         | Data Type        | Description

_includes/templates/index.html

@@ -64,8 +64,8 @@ http://opensource.org/licenses/MIT.
       <!--
       <p><a href="/en/developer-guide#payment-processing">Payment Processing Guide</a></p>
       <p><a href="/en/developer-examples#payment-processing">Payment Processing Examples</a></p>
-      -->
       <p><a href="https://dashpay.atlassian.net/wiki/spaces/DOC/pages/86278547/Dash+Payment+Processor"><span class="fa fa-external-link"></span> Dash Payment Processor</a></p>
+      -->
       <p><a href="https://github.com/QuantumExplorer/bips/blob/master/bip-0070.mediawiki"><span class="fa fa-external-link"></span> Payment Protocol</a> - BIP70</p>
     </div><div>
       <h2 id="mining"><span class="fa fa-puzzle-piece fa-lg"></span> Mining</h2>