* Regenerate Doxygen documentation

* v2.7.11 release
_v2.7.11 (20201002)_

**[Features]**
- Transcold: Add detailed support. (#1256 #1278)
- Airwell/Whirlpool: Add handling of previous state to `.toCommon()` (#1275 #1276)
- IRMQTTServer: Change how MQTT packet/buffer size is set. (#1271)
- Fujitsu: Add support for timers. (#1255 #1261 #1262)
- Neoclima: Add Economy & Fahrenheit support (#1260 #1265)
- Technibel: Cleanup and code fixes/improvements. (#1259 #1266)
- Technibel: Add detailed A/C support (#1259)
- Transcold: Add basic support. (#1256 #1258)

**[Misc]**
- refactor ir_Delonghi (#1285)
- Whirlpool: Change default mode in `convertMode()` (#1283 #1284)
- SamsungAC: Unit tests to help debug poor signal (#1277 #1280)
- Add question & note about VS1838b use to issue template. (#1281)
- rewrite ir_Corona (#1274)
- tools/mkkeywords: Fix minor parsing issue. (#1272)
- Add Zhongxian Li to Contributers.md (#1270)
- rewrite Carrier (#1269)
- rewrite ir_Argo by using bit field (#1264)
- rewrite ir_Amcor by using bit field (#1263)
- Update Fujitsu supported model info.
- Clarify the scope of the LittleFS breaking change.