Pull Requests Merged

There was no significant features added by me. However, some pull requests were merged.

• Tried to use Travis CI, in the end it couldn't compile Skript...
• Added possibility to replace items in inventories (thanks @Tuke-Nuke)
• Added expression for specific inventory slot (thanks @Tuke-Nuke)
• Added expression to get currently open inventory (thanks @Tuke-Nuke)
• Added support for entity UUIDs (thanks @Tuke-Nuke)
• Added expression to get an amount of item (thanks @Syst3ms)
• Added possibility to spawn baby polar bears (closes #355)
• Added enchantment Sweeping Edge (closes #366)
• Fixed a critical bug with growth event
• Re-added old plant growth event as an option
• Fixed a typo in word expression (thanks @TheLimeGlass)
• Fixed a potential exception in open inventory expression (thanks @Tuke-Nuke)
• Fixed entities expression assuming an entity where there wasn't one (closes #326)
• Fixed a potential NullPointerException (closes #319)
• Fixed a typo with experience orb display name (closes #320)
• Fixed a potential NullPointerException in WorldGuard hook (closes #280)
• Fixed equipping saddles on all horse types (closes #377)
• Removed new parser for now
• Removed a debug message (closes #337)