Embedded attachments in api work package model.
WIP wiring up attachments tab.
Linking to attachment and author on attachments tab.
Moved filesize display into helper.
Order work packages attachments by filename by default.
Merge branch 'dev' into feature/attachments-tab
Moved more display fluff into work packages details helper.
Massive Till style refactor of everything. Tests havnen't been replaced yet.
...aaaaand all the files i forgot to add.
Renamed/moved a bunch of templates and wrote directive tests for attachments.
Deleted accidentally added directive and added newlines.
Obeyed Till one last time.
Added table headers to attachments and using latest styles from prototype.
Merge branch 'dev' into feature/attachments-tab
Formatting attachments dates per system settings.
Hiding table headers if there are no attachments.
Remove obsolete svn scripts.

I haven't seen anyone ever using those script. Plus they are long
removed by redmine, see:
https://github.com/redmine/redmine/commit/72eebe1ce102ec26b444b7bd25f07dd720150fe1
Merge pull request #1625 from opf/fix/remove_obsolete_svn_scripts

Remove obsolete svn scripts.
Merge pull request #1613 from opf/feature/attachments-tab

Feature/attachments tab
added disable password option