v0.1.5.1

Issues #9 and #18.

• Calendar adjustment arguments: adjust.from and adjust.to
• The default calendar call Calendar() reflects the actual/365 day count rule

v0.1.5

Issues: #13 #14

• New functions:
  • bizyears: business days in years
  • bizdayse: current days to business days equivalence
  • bizyearse: current days to business days equivalence in years
• changes:
  • Calendar now has the dib argument to specify the amount of days within a year
• Travis-ci integration
• Code optimizations and improvements

v0.1.4

#10 #12