* Use local folder for xgo

* Always do crosscompile and testing to fail early

* Added mips* values for boltdb

In order to get master building again I have applied these 2 additional
files to boltdb. This should get dropped when
https://github.com/boltdb/bolt/issues/656 gets solved.

Until aircover gets updated so that it works again I have disabled to
coverage report upload for now.

* Get rid of the bin folder within the build process

Signed-off-by: Thomas Boerger <thomas@webhippie.de>

* Dropped latest make task, it is unused

Signed-off-by: Thomas Boerger <thomas@webhippie.de>

* Added tidb tag to drone config

Signed-off-by: Thomas Boerger <thomas@webhippie.de>

* Dropped the cert build tag

Signed-off-by: Thomas Boerger <thomas@webhippie.de>

* Dropped useless minwinsvc build tag

Signed-off-by: Thomas Boerger <thomas@webhippie.de>

* Dropped the useless build tags from drone config

Signed-off-by: Thomas Boerger <thomas@webhippie.de>

In order to automatically build docker images I have re-enabled the
docker building parts within our drone runs on every push to master and
on every tag.

Signed-off-by: Thomas Boerger <tboerger@suse.de>