arcctl and RunTimeEnvironment control

See merge request nordugrid/arc!71

Shell backends fixes to reflect RTE enable/disable with arcctl. Default RTEs feature implementation.

Increased allowed timediff to 60s for config-check (Closes #10)

Closes #10

See merge request nordugrid/arc!68

Build python34-nordugrid-arc for EPEL 7

See merge request nordugrid/arc!61

fix few places still using x509_user_*

See merge request nordugrid/arc!59

Reducing level and number of log messages.

See merge request nordugrid/arc!50

Adjusting a-rex default log level to INFO.

See merge request nordugrid/arc!47

Solve #13

See merge request nordugrid/arc!44

Fix some issues with the slurm test makefile (Fixes #14)

Closes #14

See merge request nordugrid/arc!43

updates to boinc submit script

See merge request nordugrid/arc!38

 - Only remove files in "make clean" that were created when running "make"
 - Do not include files created when running "make" in the distribution tarball

Update .gitlab-ci.yml - Forgot to remove some double-up deploy stages. Causing logs not to be uploaded to artifacts.

Update .gitlab-ci.yml - Now the arc-logs should actually be properly uploaded in artifacts. Changed where the logs are mounted in the docker container. 

Update .gitlab-ci.yml - Removed the host certificate generation. And run deploy on separate machines for el6 and el7. 

The host certificate generation is not needed as the runner machine is persistent, and the /etc folder is mounted inside the docker container as a volume. So no need to regenerate it each time. If however /etc was not mounted inside the docker container, then host-generation would have to be done for each docker container. 

Running deploy on same machine for el6 and el7 is a problem since arex start up scripts can be found in /etc which is available for all docker images so el6 deploy and el7 deploy will interfere. Are therefore now running the two deploys on separate machines. 

Because gitlab-runner config.toml has same runner configured for two images, using last which is centos7. Adding image name here instead to mitigate this. 

Update .gitlab-ci.yml  - Forgot to create folders for arc-logs and arc-tests. Causing deploy to fail. Switched from storing arc-logs in /var/www/html/arc-logs and ... /arc-tests on host machine to instead be inside docker container. This way the different deploy instances do not write to the same log files causing confusion. 

Update .gitlab-ci.yml - Wrong runner for deploy centos 7 - use rhel-compatible runner for all rhel compatible deploys.