APIv2. Closes Difrex#4

[Difrex#2]: Force data marshaling into JSON object

New path: */v1/get/path/to/the/node+json*
Method: *GET*

Fixes Difrex#2

Fix memcache

Memcached support

* New method: PATCH

* Fix return path string in rmr

* Version bump

-ti removed in binary build

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