Update de.h.txt

Line 322 Colum 180 and Line 324 Colum 172 
german was different to engish
TR_TELEM_RSSI_RX missing
At opentx  telemetrie no RSSI selection at special funktions
hope thats all
Update DONATIONS.txt
Backlight driver fixed on Taranis+
Fixes #1294 - Companion, Delete action without a selection
re #1294 - clear input name if removing last input line
Fixes #1267
'phase' renamed to 'flight mode' everywhere in the code
Google tests didn't compile with my last commit
Fixes #1264
Fixes #1271
Fixes #1281 - Needs to be tested on Windows 8
Fixes #1264 - CFN_GVAR_CST_MAX is 500, int16_t is needed
Update DONATIONS.txt
Update it.h.txt

Some changes in Italian translations
Added couple of simulator telemety initialization values.
Fixes #1267
Removed frskyData.hub.gpsDistance simulator initialization because it is a calculated value.
Compilation failure on Sky9x without FRSKY extension
Code cleanup on Sky9x pulses
Compilation failure