Refactor class CodecademyBadges

- get_badges: remove unnecessary variable user_information
- get_html: remove unncessary variable document
- integrate:
  - map out each_with_index, returning array of arrays
  - then hash the array
badges.rb: Make get_titles and get_dates return clean arrays

- get_titles: map over xpath results and get text out
- get_dates: map over xpath results and Date.parse the text
- integrate: no longer need to .text and .parse the titles and dates
badges.rb: use class constants for codecademy strings
Merge branch 'lee' into develop
Merge branch 'develop' of github.com:ISS-SOA/Codecademy-Ruby into develop
Prepared gem for build

edited gemspec file:
- updated 'date'
- added runtime dependencies
Added .gitignore
Merge pull request #8 from ISS-SOA/release-0.1.0

Release 0.1.0
removed open-uri from gemspec runtime dependency list
bumped version to 0.1.1
edited bin/codebadges: used relative expanded require path
bin/codebadges: add module name to method call and change require statement
Merge branch 'develop' into lee

Conflicts:
	codebadges.gemspec
Added get_badges_from_file method
Modify the method contents
Solved the empty line problem
Added file.close statement
Delete some unecessary code
Fixed ruby style problems
Indent the code