Grouping hooks, theme functions and such;
Fixing dodgy doxygen.
Remove dodgy whitespace.
Capitalisation + termination with period.
The minor fixes that kinda crept in via an earlier commit are all in hook_menu:
Move the datetime.inc include into hook_menu.
Replaced redundant user_access statements with the available $access
Minimise a couple of drupal_get_path calls in hook_menu..
This patch will obviously break all other patches in the queue. However, all other fixes / improvements that I will be adding in the next week or so will very likely depend on this feller going in.