[cli] shell return codes with errors
1086729 - make build tab friendly for users without JS

all entries are shown by default and hide them when page is loaded.
add indexes
if directory does not exist, do not try to delete it

addressing:
Process jobgrab:
Traceback (most recent call last):
  File "/usr/lib64/python2.7/multiprocessing/process.py", line 258, in _bootstrap
    self.run()
  File "/usr/share/copr/copr-be.py", line 104, in run
    self.fetch_jobs()
  File "/usr/share/copr/copr-be.py", line 97, in fetch_jobs
    ao.run()
  File "/usr/share/copr/backend/actions.py", line 51, in run
    for chroot in os.listdir(path):
OSError: [Errno 2] No such file or directory: '/var/lib/copr/public_html/results/asamalik/test-project'
Automatic commit of package [copr-frontend] release [1.34-1].
Automatic commit of package [copr-backend] release [1.34-1].
[cli & api] delete a project
[cli] error and shell return code 1 when build fails
[cli] exit code 4 for failed build and man pages updated
add newline at the end of repo file

so it looks nice when you cat it
add newline at the end of repo file

so it looks nice when you cat it
Use flask_openid safe_roots to mitigate Covert Redirect.
Use "https" in API template
admin/playground page