Added new mine sign settings:
Line 1 - [rm] or [realmines] | Line 2 - <mine name>
Accepted settings for Line 3:
bm - Number of Mined Blocks
br - Number of Remaining Blocks
pm - Percentage of Mined Blocks
pl - Percentage of Remaining Blocks
!new! b - Bar of Mine's Blocks
!new! pb - Percentage Bar of Mine's Blocks
!new! tl - Time Left
!new! sl - Seconds Left

Added ability to save item's flags in item stacks.
Added again wrong usage for commands
Fixed PlaceholderAPI inefficient code
Fixed give action giving wrong item's
Fixed item size not being properly set when giving or dropping items with mine break actions
Fixed mistake when block mine's were resetting on startup even after disabling them in config