Update README.md
Merge branch 'master' of github.com:abeaumet/hordes_enhancer into dev

Conflicts:
	README.md
Update README.md
Add requirements
Safari portability
Refresh Twinoid bar side panels cache more often
Update changelog
Enable communication between global and script page
Fix Safari extension id
Update readme
Rename build script
Execute Safari network request in the global page
Fix cross origin permission
Add options to build.sh to build specific part
Firefox wrapper loads faster
Update todo
Remove debug code
Update todo
Change version number (0.0.3)
Add Safari to readme