Allow dots in job specifier of input type 'Previous build'

Dependencies

• [2] IEXUBVNB allow dots (.) in job names when used as build input
• [3] JZE7DC2F Whitespace
• [4] OOQ2D3KC * Refactoring: move fetchInput out of hydra_scheduler into a separate

Change contents

• replacement in src/lib/Hydra/Helper/AddBuilds.pm at line 37
  [3.3502]→[2.0:68](∅→∅)
  − $s =~ / ^ (?: (?: ([\w\-]+) : )? ([\w\-]+) : )? ([\w\-\.]+) \s*
  [3.3502]

  [3.3568]
  + $s =~ / ^ (?: (?: ([\w\-]+) : )? ([\w\-\.]+) : )? ([\w\-\.]+) \s*