add ability to specify bootstrap file
add help info about bootstrap option
add test case for bootstrap option
split bootstrap feature into new file
capitalized error message
fix test case
put a new line before scenario
follow coding style
add given statement
Simplified error handling and changed exception thrown when file is not present
Fixing text of input option
Merge pull request #516 from ciaranmcnulty/add-bootstrap

Add ability to specify bootstrap file
bugfix - make value optional
bufix - capitalisation