Merge pull request reactiveui#629 from benjaminhowarth1/master

Fixes reactiveui#627, reactiveui#637 and relates to reactiveui#573

Merge pull request reactiveui#663 from yuri-voloshyn/master

added RefitRestServiceAttribute for HttpClient relative path

Merge pull request reactiveui#646 from Styxxy/memleakxml

fixes reactiveui#643 add xmlserializer cache

Merge pull request reactiveui#634 from lhyqy5/issue-625-output-encodi…

…ng-error

Fix reactiveui#625: xml output encoding don't match writer setting

ensure tasks are loaded from the correct location for both transitive…

… and build directories.

Fixes reactiveui#619

Merge pull request reactiveui#612 from reactiveui/update-core

Update core

Merge pull request reactiveui#581 from Styxxy/preserveattribute-names…

…pace

Conflicting PreserveAttribute when using InternalsVisibleTo

Update README.md

Merge pull request reactiveui#536 from reactiveui/strong-name-build-task

Add strong name to build tasks

Cleanup and docs