GUI: added {validationLinkCustom} to help for notifications
Merge pull request #528 from zlamalp/custom

GUI: added {validationLinkCustom} to help for notifications
GUI: better display of user's name from cert DN

- Display readable CN from cert DN if user is unknown
  and on submitted applications page.
Merge pull request #529 from zlamalp/cert

GUI: better display of user's name from cert DN
Fixed name of the default Perun conf. directory
Added getHostsByHostname function.
Merge pull request #531 from CESNET/getHostsByHostname

Added getHostsByHostname function.
Removed non-existent validateMember function and fix in addVoMember
Merge pull request #535 from tauceti2/addVoMemberFix

Removed non-existent validateMember function and fix in addVoMember
GUI: always sort task results by date (newer first)
Merge pull request #536 from zlamalp/sorting

GUI: always sort task results by date (newer first)