Support Modification of Version metadata.
Merge pull request #8 from linjunpop/support-versions

Support Modification of Version metadata.
Bumped version number. Interval start and end dates are optional. Updated metadata version number.
Update README.md
Bumped version number. Started new versioning.
Bumped version number. Started new versioning.
Bumped version number
Display targets sorted and positions properly set
Added multiline support for description
Make some sections to be optional in the config file.

- Version description, keywords, software, privacy and support urls.
- Game Center.
Refactor image handling:

- Add normalize image names, support folders and prevent conflicts.
- Refactor the screenshots section in the config file.
Update examples.
Update readme
Merge pull request #14 from mmacvicar/fixes_and_refactors

Fixes and refactors
Multiline support for version_whats_new. Bumped version number to 0.4.5
Added license
allow screenshots with the same file name for different locales

For this, the locale is added in the generated filename
Bumped version
Update README.md