Renamed new GUI elements so that texture packs don't use the old version
This relate to @mezz commit on Forestry
ForestryMC/ForestryMC@ce1d24952f0523aa4e8b767fe90046690a118ca0

1. Restored beealyzer.png from previous verion and readded new version as beealyzer2.png
2. Added worktable2.png : missing reset button
3. Added mailtrader2.png : Layout change