Add BroversityRX (HW type 9)

Signed-off-by: Kari Hautio <khautio@gmail.com>
initial rework of serial layer
EXPERIMENTAL bugfix for delayed .connect request firing (this bug took over a year to hunt down and attempt to fix)
moving to different date format
Fix dates ;)
Fix firmware.html
Merge pull request #18 from readerror67/development

Fix dates ;)
fix user related dates
add new receiver type as requested
updating what i can (missing bins, changelogs needs relevant info)
crank up the release date check from 2 months to 3 months
adding latest binaries
Update v3.7.4 FW changelog

Signed-off-by: Kari Hautio <khautio@gmail.com>
indentation, etc
Add 'diversity' to fw changelog

Signed-off-by: Kari Hautio <khautio@gmail.com>
add some debug messages that aren't affected by debug flag
bind validation events differently, experimental
the underlying logic isn't good enough to handle this
Support for 'powerboost' switch.
New PSP_REQ/SET_DEFAULT_PROFILE API.