Collapse component and new export style

#167

New docs & various style fixes

#163 Fixes readme images
#162 Run tests in band & deploy styleguide directory
#144 New documentation
#154 Improve input contrast

Atomic position classes, improve disabled styles, hr styles

#158

Additionally add a nice close modal icon in examples

Improve color contrast

#156

Link variables

#147

Table fixes (including fixed row headers)

#142
Fixes #75
Resolves #79

SpacedGroup children not forced inline

#141

Zero column values

#140
Fixes #136

Non-scrollable tables

#135

Components accept a "component" prop

#129