Resolve "Include header box from SchoolApps"

Closes #61 (closed)

changed milestone to %2.0a2

added part::frontend type::feature labels

added 25 commits

• b2a5dad4...29dd2846 - 22 commits from branch master
• 6587ea9e - Rename title and description of absence reason to short_name and name
• d91ecfc3 - Merge branch 'master' into 61-include-header-box-from-schoolapps
• 29a9c52b - Show absent teachers and groups in substitutions table

Compare with previous version

unmarked as a Work In Progress

assigned to @nik

mentioned in commit 72391711

merged