Add the getKeys method
add getKeys method
indent with 2 blanks instead of 4
correct indentation
Merge pull request #4 from jmcollin78/master

Add the getKeys function
Bump version
add the addFile and reset method to load files manually
correct indentation
correct indentation
correct indentation
Merge pull request #5 from jmcollin78/master

Add the addFile and reset function to be able to manage file one by one
Update README
Bump version