Removed composer.lock from .gitignore (see https://github.com/chartjes/opencfp/issues/48).
Merge pull request #49 from hhamon/gitignore_updates

Removed composer.lock from .gitignore
moving faker into require-dev
adding composer.lock
fixing #52
removing redundant validation
simplifying the bootstrap class a bit
Fixed a bug where we had a mismatch in the submission types, got rid of use of flash messages to show errors
Tweaks to the templates
removing catching of bare Exceptions on signup form.  See #52 for
commentary.
Tweaks to fix some unnecessary validation logic
Resolving conflict
Added in date of conference
Removed use of flash messages for displaying validation errors
Fixed an inaccurate validation error message
Fixed broken tests
Removed stray double quote, thanks Jordan Kasper
Since we're sanitizing data, it's probably okay to remove one of the checks
Removed improper use of flash message
Cleaned up template to display proper error messages resulting from validation