fixups for font-devicons

- change classname to match filename
- update version to 1.4.0
- add checksum since the URL is versioned
- reorder stanzas
- re-use `version` in `url` and `font`
- remove leading whitespace

References: #183
Merge pull request #187 from rolandwalker/devicons_fixup

fixups for font-devicons
adds meslo font for powerline
remove dashes front font class names

closes #188
Merge pull request #189 from rolandwalker/fix_dash_fontnames

remove dashes front font class names
add font LisuTzimu
Merge pull request #190 from rolandwalker/add_lisutzimu

add font LisuTzimu
add font Gardiner
Merge pull request #191 from rolandwalker/add_font_gardiner

add font Gardiner
Add Input by Font Bureau
Merge pull request #193 from ndr-qef/input

Add Input by Font Bureau