Update UrlUtils for better timeout handling, Add config option as well.
- Changed cURL max timeout to a configurable setting (solder.php)
- Set cURL connection timeout to 5 seconds.
Fix Image uploading, Update modpack image sizes and preview classes
- fixes #173 and resolves #169
Added Minecraft Version caching feature, updated solder configure, modpack edit views
- Fixes #170
- Added MinecraftUtils, contains multiple methods for creating a cached list of minecraft versions and their MD5 checksums.
- Added ajax method to SolderController to allow manual re-caching from the Solder Configure view.
- Removed old Minecraft Version code from ModpackController