Merge pull request #88 from bitbar/devel

Devel merge to master
Merge pull request #93 from bitbar/devel

Devel -> master
Merge pull request #96 from spawluk-bitbar/devel

Devel
Merge pull request #99 from spawluk-bitbar/devel

Devel
list usage improved; test run config cluster -> device group renamed
merge
Merge pull request #100 from kajdus/master

list usage improved; test run config cluster -> device group renamed
list traversing fix
Merge pull request #101 from kajdus/master

list traversing fix
json ignore added for traversing list
Merge pull request #102 from kajdus/master

json ignore added for traversing list
Merge branch 'master' of https://github.com/bitbar/testdroid-api into devel
Fixed TestRunConfig update
Merge pull request #104 from spawluk-bitbar/devel

Devel