Fixed random date functions that did not distribute results evenly over the requested period.
Better UMD (Universal Module Definition) support

The previous implementation of `UMD` (Universal Module Definition) didn't
work well with such libraries as `AngularJS` which globalizes `module`
variable which is injected with `exports` by another 3rd party library.
That leads to situation when `Faker` doesn't add itself to `window`, but
to that `module.exports` variable which is wrong.

Implementing `UMD` in a common way used by such tools as `browserify`
solves the problem thought it's pretty clear that other libraries should
respect the rules, not only `Faker`.
functions should reference current literal:
  * fixes error: 'Uncaught ReferenceError: image is not defined Faker.js:275'
improve image test coverage
remove gender related files:
  * removed files relating to gender
  * removed an esoteric `import.js` file which did not seem to be used
auto-increment copyright year in docs
Updates Build.
Merge pull request #81 from hkal/auto_increment_copyright_year

auto-increment copyright year in docs
Merge pull request #79 from hkal/resolve_image_undefined

Resolve image undefined
run build to reflect latest changes:
  * should reflect changes from 10181fbf6c1e7fa334fa0b86935326c140bee830
  * should reflect changes from 272cd8e1e1fa7a504326b3f3ed5cd75151429977
Merge pull request #82 from hkal/run_build_against_pull_requests

run build to reflect latest changes:
better version handling:
  * 'Faker.version' will now be populated by the version property in 'package.json'
Merge pull request #80 from hkal/remove_gender_related_files

remove gender related files
Merge pull request #83 from hkal/better_version_handling

better version handling:
Bumps version number and rebuilds
Adds female and male name methods. #NOTE they will return a random name and working as intended.
Moving to major new version for change of package name for uppercase to lowercase.
We need remove these versions because of mac os case stupidity.
deletes the last Uppercase faker file.
All files are now lowercased. :D