Lower I2C speed to 200kHz as 400kHz is unreliable with longer lines.
TX: make bootup faster
Bump version to 3.6.1
Reorganize flags and fix duplicate watchdog/microPPM flag
Merge pull request #59 from DTFUHF/development

Reorganize flags and fix duplicate watchdog/microPPM flag
Merge branch 'development'
Merge branch 'master' into 31-rfm2x