Multiple features#42

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ceremcem wants to merge 4 commits intoloadingio:masterfrom

ceremcem:master

Commits on Aug 2, 2020

improved build system as this project requires node v8
Cerem Cem ASLAN
committed
added img2 (custom background image) support
Cerem Cem ASLAN
committed
fixes flickering effect when the label has integer value
Cerem Cem ASLAN
committed
added limit-top and limit-bottom options
Cerem Cem ASLAN
committed