v0.2.0

Changelog

7695f44 Implemented great optimizations for auto-completion
23fa5ff Implemented option to disable auto-completion for command line
b2c5d05 Updated shortcuts in README.md
c95c162 Added symbols
24bf3ff Implemented notifications, optimized colors
a6026cc Fixed bug in cmd, optimized usage
bcd2ce5 Implemented whois command and user profiles
85ee4f7 Refactored known users, fixed bug in prompt
fb6c1f8 Updated README.md
e4b02be Implemented hashtag timeline
d357728 Replaced screenshot PNG with smaller JPG
c57e4f2 Fixed list in README.md
21cc98e Fixed int conversion / length calculation