Revert "Edit dates mode button/style"

This reverts commit 33f6922ece1f8c11cb3ecb15e5bc9872c901013f.

Conflicts:
	css/sections.css
	keep-the-records.scm
	scss/sections.scss
Revert "Date mode enter date styles."

This reverts commit 8963f9426c35a5c6fcc614846e911bf202a798fb.

Conflicts:
	css/sections.css
	scss/sections.scss
Show date picker on /sections and use that date for marking sections.