Closes #1

Refactors Regex for CapybaraExtensions::Locators#image_locator?

Adds tests for ElementNotFound for #find_image

Cleans up one-liner in #image_locator

Bumps version.
Adds underscores to private methods.

Cleans up nested conditionals in #image_locator.
Moves concatentation of alt into else for
Uses 2 separate conditionals for evaluating the options hash in
CapybaraExtensions::Locators#image_locator.
Merge pull request #2 from dockyard/md-1-regex

Closes #1