Update to use libadblockplus revision b4d6e55f2116

[sergz]

Background

Beside other things the new version of libadblockplus uses android NDK 12b and there are almost no changes in the public API of libadblockplus until this revision.

The list of changes imported by this is:

Ticket	Summary	Component
#5433	Allow to specify external prebuilt v8 while compiling libadblockplus	Libadblockplus
#5378	Stop using of jshydra in libadblockplus	Libadblockplus
#5183	Make interface of FileSystem asynchronous	Libadblockplus
#5119	use own version of buildtools for ensure_deps instead of a version from adblockpluscore	Libadblockplus
#4907	Update v8 to 5.7.278 in libadblockplus	Libadblockplus

​b4d6e55f2116	Noissue - don't throw a pointer to an exception in C++	Sergei Zabolotskikh
​0f144e401672	Noissue - move anonymous namespace from header to cpp file	Sergei Zabolotskikh
​16ea1ae3347d	Noissue - synchronize usage of struct and class	Sergei Zabolotskikh
​35e4ccd3b140	Noissue - remove unnecessary including of v8.h	Sergei Zabolotskikh
​094e2850704b	Noissue - move host detecting script into libadblockplus repo	Sergei Zabolotskikh
​193cb0a8b53e	Noissue - remove obsolete part of a comment	Sergei Zabolotskikh
​451ff2c10f78	Noissue - fix headers in order to compile on MS Windows	Sergei Zabolotskikh
​ebd2573db477	Noissue - Use buffer for FileSystem IO	Hubert Figuière
​4932fd217b7d	Noissue - Fix some execution order issues in the prefs initialisation	Hubert Figuière
​dd95ab67d425	Noissue - fix typo "dowload" to "download" (n is absent)	Sergei Zabolotskikh

What to change

Prepare and update libadblockplus-binaries dependency to libadblockplus hg:b4d6e55f2116 revision as well as adapt the code.

[abpbot]

A commit referencing this issue has landed:
​Issue 5473 - Update to use libadblockplus revision b4d6e55f2116

[abpbot]

A commit referencing this issue has landed:
​Issue 5473 - update to libadblockplus revision b4d6e55f2116