Change loback dependeny to runtime

Fixes #218
Update gradle 1.12

Fixes #209
Update CHANGELOG and version

Prepare release 1.4.0
Add game setting "lastBuildNumber"
Fixes #221 deletion of cache files while offline
Update CHANGELOG.md
Update CONTRIBUTING.md
New version 1.4.0-beta
Updating Polish (for #201)

For issue #201
Merge pull request #225 from Halamix2/polishTranslation

Updating Polish
Fix some PMD warnings
updated Spanish translation
updated copyright to 2014
fix for Polish "infoHeader2" property
Merge pull request #1 from msteiger/javafx

Merge webstart content into JavaFX
Merge pull request #227 from skaldarnar/polishTranslation

fix for Polish "infoHeader2" property
Merge pull request #226 from skaldarnar/spanishTranslation

updated Spanish translation
Fix translation files
Merge pull request #2 from msteiger/javafx

Fixed jna version in webstart
Version 1.4.0-rc (develop)
Release 1.4.0