This week included some key stability fixes, new streaming functionality, and the 0.4.0 release

• Detegr fixed some issues with parsing filesizes (#847)
• jonathandturner released 0.4.0 and did some additional tidying (#844)
• jonathandturner also added new streaming table support (#812)
• t-hart added a new from-ssv command (#835)
• andrasio fixed a handful of issues with first, last, and count (#833)
• wycats continued to improve the new coloring support (#831)
• wycats also added a way to create unstable features behind flags (#810)
• thegedge fixed an issue with how external commands got their values (#829)
• New docs added by sdfnz (#836)