20201221

Add or improve support for these monitors:

• Acer B196L (#132)
• Acer ED273UR
• Acer P226HQV
• ACER VG270U P (ACR06CF) (#136)
• Acer XV273K (ACR06B1)
• AOC E2343F (AOC2343) (#104)
• Dell S3220DGF (#116)
• Dell U2515H (DELD070) (#96)
• Dell U2720Q (#129)
• DELL U3219Q
• DELL U3219Q
• Dell U3415W (#113)
• Iiyama GB3461WQSU (#139)
• LG 25UM58 monitor (#137)
• LG GSM5B55 (#103)
• Portable Monitor T-Bao T15A DEL40F3

Also other changes:

• Add contributing guide (#115)
• Add EditorConfig
• Document how to disable controls
• Include VESA profile
• Remove degauss, refresh when change lgmode
• Replace Secondary Degauss with New Control Value (#128)
• Update build dependencies
• Update build dependencies example

20190825

Released version 20190825

20180602

Released version 20180602

20171217

Released new version 20171217 (updated changelog, and configure.ac)