Initial changes to make alias system use magics
Allow new style aliases to be stored
Remove alias code from prefilter
Alias code cleanup
AliasCaller knows its own name
Remove unnecessary prefilter alias handler tests
Remove alias_table
Add test for alias creation, use and destruction
Fix storemagic test for new alias API
Add What's new entry for changes to alias system
Remove alias machinery from IPCompleter
Changes to Alias API after discussion with Fernando
Merge pull request #4151 from takluyver/drop-alias

Refactor alias machinery