Merge pull request #2 from masciugo/master

merged with upstream
MVP for brith date and death date support
Merge branch 'brith_death_dates' of https://github.com/estensland/genealogy into brith_death_dates
adding death and birth methods and setting up tests
Merge https://github.com/estensland/genealogy into brith_death_dates
Merge branch 'birth_death_dates' of https://github.com/estensland/genealogy into brith_death_dates
updated specs and removed days options as it requires more work to comprehend the number of days per month
tests work with set end date now
updated README
turned if elses into ternaries
re worked README description
fixed typo
reorder readme
fixed typo in README and cleaned up def age inside of query_methods to be more readable
trailing spaces removed
multiple newlines removed
age readme update
Bump to 1.5.0