Major fix for perl-reversion:

• -bump now properly maintains the number of version components;
  previously, it was treating every version as though it had at least 3
  components, so e.g. 1.1 was being wrongly bumped to 1.1.1
  Other fixes for perl-reversion:
  
• -bump -stringify will now properly keep the original version format
  (it was acting as though -normal had been specified)
  
• noted that -stringify is the effective default for -bump/-set, so
  those options more accurately report the new version