Add alias/init command.
0.1.329
Load user alias file at startup.
0.1.330
Add alias/parse command.
0.1.331
Add alias/get command.
0.1.332
Add alias/print command.
0.1.333
Warn on no alias data.
Update cd docs.
0.1.334
Improve handling of cd ../ paths.
Remove database name validity test (chdir).
Draft ./ handling for cd.
Simplify cd implementation.
Improve history pattern compile error handling.
Improve regexp compile error handling.
0.1.335