Merge branch 'release/v0.8.0' into develop
Switch to 0.9.0-dev branch
Improve lib examples
Fix "repository" field and "type" attribute
Fix trademark issues
Update Twitter link
Add "user Guide" shortcut to lib menu
Add logo, improve texts
Update project title
Add pics to IDE page
Improve installation
Add 'sudo' notice
Improve PlatformIO ideas
Add pic for colourful output
Fix SHA1 package verification under Cygwin Env. Resolve #26
Improve installation section
Refactored Package Manager
Improve support for 3-rd party platforms
Allow for search args to be empty
Improve install/uninstall commands