diff-merge all _custom-*.scss files with latest v4-alpha5

[guylepage3]

diff-merge all _custom-*.scss files with the latest bootstrap merge of v4-alpha5 to avoid breakage.

Core variables

• [x] @import "custom"
• [x] @import "custom-variables"
  • [ ] update all spacing variables in _custom-variables https://github.com/blockstack/blockstack-bootstrap/issues/65
  • [ ] review all breakpoints and containers in _custom-variables https://github.com/blockstack/blockstack-bootstrap/issues/66
• [x] @import "custom-reboot"
• [x] @import "custom-type"
• [x] @import "custom-tables"
• [x] @import "custom-buttons"
• [x] @import "custom-nav"
• [x] @import "custom-card
• [x] @import "custom-pagination"

Mixins

• [x] @import "mixins/custom-mixins"
• [x] @import "mixins/gradients"

Utilities

• [x] @import "utilities/custom-background"

[guylepage3]

complete.

• @import "custom-reboot"
• @import "custom-variables"

items yet to resolve in _custom-variables.scss

• [ ] update all spacing variables in _custom-variables https://github.com/blockstack/blockstack-bootstrap/issues/65
• [ ] review all breakpoints and containers in _custom-variables https://github.com/blockstack/blockstack-bootstrap/issues/66

[guylepage3]

complete.

• @import "custom"
• @import "custom-type"
• @import "custom-tables"
• @import "custom-buttons"

[guylepage3]

complete.

• @import "custom-nav"
• @import "custom-card"
• @import "custom-pagination"
• @import "mixins/custom-mixins" No merge needed as it's just a new imported mixin file
• @import "mixins/gradients"
• @import "utilities/custom-background"