* adds debian builder image
* adds arm32v7 debian based builder image
* sets the default build target to amd64-ubuntu-builder if MARCH is unset
* adds distro filter and set default to ubuntu for travis
disables debian builds for now
* fixes wrapper for non container hosts
* fixes distro selection and parallel mflags
* changes parallelization option
* fixes parallel flags and variable names
* enhances makefile
adds checksum for fetch dependencies
discovers necessary commands
fixes error when script get_container_id not found
* fixes copy artifacts to image
* fixes typo
* fixes another typo
* removes bash dependency
- simplifies scripts to support posix shell
- adds REGISTERY_PREFIX to support usage of local docker registry
- renames wrapper template
- adds discovery for tty and interactive for wrappers
* adds docker-compose wrapper
* adds ability to start wrapper in namespace of another container
* renames compose wrapper script
* adds support to retrieve source epoch date for svn
* fixes handling for positional arguments
* removes docker connection options
* removes dependency to readlink
* removes duplicate options
