Nov 15, 2015

# 1.2.7
Added Background Graph Line Opacity option.

# 1.2.6
Added Multi-Window support.

# 1.2.1, 1.2.2
Group rendering performance improvement.

# 1.1.8
Rendering performance improvements.

# 1.1.7
Adding Copy Group feature.

# 1.1.5
Performance tuning.

# 1.1.1
Fixed PDF export behaviour.

# 1.1.0
Add a background paper type change feature.

# 1.0.8, 1.0.9
Performance tuning

# 1.0.7
Fix : some bug fixes and icons change.

# 1.0.5
New : Pdf export ( KitKat )