Bug fix: allow logical expression in the formula dependent variable
Bug fix: adding ` error when level value contains column names
Fixed issue #28

Currently PivotalR cannot support sorting multiple columns, esp. with
different ordering constraints like one asc, one desc.
For example, the equivalent form of PivotalR cannot be done:

select name from tbl order by score desc, date asc;
Update email and website domain name
Bug fix: logical expression with date types should also be boolean

Previously, the boolean type was not correct assigned
Added plr functions
Let the result of map carry the grouped data information
Updates
Fixed lots of small bugs
Exported declare
Fixed a potential bug
Allow arguments use same type as return
Added aggregate
Fixed bugs
Added plr.map, let plr and plr.agg return db.Rquery
Started manual for plr support
Editing the plr manual file

One more thing:

* The initial condition of plr.reduce
Continued editing the manual
Continued editing plr manual file