Add option to run without configuration file

Noop at this moment.
Refactor tests
Add specs for configuration file
Add parsec
Add spec for running hi with configuration file
Read, parse and use configration file
Fixed bug that year is not added in config-file mode
Doc
Write 'Making your own project template' section of README.md
Merge pull request #3 from fujimura/config-file

Read default values from .hirc