Valloire-release

• use warnings/$^W = 1
  
• Tested on 5.10.0, 5.8.8, 5.6.2, and 5.005_04, Strawberry and Cygwin
  
• Diagnostics for failed new ()
  
• New 'blank_is_undef' option
  
• Updated docs
  
• Extended the DIAGNOSTICS a bit
  
• Updated TODO
  
• Fixed allow_whitespace issue, revealed by blank_is_undef
  
• Re-enabled some tests
  
• Fixed parse error that passed for q{1, "bar",2} with escape_char +
  
• Reversed an erroneous test result in the funny combo section
  
• Extended diagnostics tests
  
• Extended XS coverage
  
• Removed error 2033