MT#4871 selenium-tests: unskip tests, timer information

they magically work now
and add timer informating as discussed with alutay

(cherry picked from commit 0e8b1f6950a8eac1a0fe48311e7b351c969abb39)
MT#4871 Change screenres of selenium-tests to 1024x768

which complies with our video output

(cherry picked from commit ac17c5421d0a48ff70ed25d70ebd165665233060)
MT#4771 fix selenium resolution for reseller test

see comment, 4771#c31437
for more on tests, see MT#4871

(cherry picked from commit fdd4c48b19b1c46bf1c316fde92a8ae6e5488801)
MT#4771 increase wait-timeout on admin-login test

see 4771#c31437

(cherry picked from commit d4c0d8de505cb13987c1d193e9ec222dac1fa52c)