Column Sorting

Another use case from GS:

I use the memo field to cross-reference postings from written ledgers and would like to sort this field alphanumerically to identify misposts.

This would be useful. It would provide an easy way to scan entries without filtering. Especially in cases where the filter term is not known (misspellings).

(from [707c790e6365]) [#48 Column Sorting] Preliminary implementation of table column sorting. http://bitbucket.org/hsoft/moneyguru/changeset/707c790e6365/

(from [7872186cd8ce]) [#48 Column Sorting] table refresh after a sort is initiated by a gui call. http://bitbucket.org/hsoft/moneyguru/changeset/7872186cd8ce/

(from [ed638c6d241a]) [#48 Column Sorting] Table sorting supports descending order. http://bitbucket.org/hsoft/moneyguru/changeset/ed638c6d241a/

(from [d58ff0cb77c4]) [#48 Column Sorting] Properly sorts lowercased/uppercased/accented letters. http://bitbucket.org/hsoft/moneyguru/changeset/d58ff0cb77c4/

(from [998ea0c12fe2]) [#48 Column Sorting] Added support for sorting in the entry, budget and schedule tables. Also, defined default sort order at startup. http://bitbucket.org/hsoft/moneyguru/changeset/998ea0c12fe2/

(from [d68a199dea3d]) [#48 Column Sorting] Added support for date column with null values in them. http://bitbucket.org/hsoft/moneyguru/changeset/d68a199dea3d/

(from [4f26a46387a3]) [#48 Column Sorting] Sorting supports amounts of different currencies (it just ignores them). http://bitbucket.org/hsoft/moneyguru/changeset/4f26a46387a3/

(from [8cfb2d3d6ab8]) [#48 Column Sorting] Sorting supports the status columns in transactions and entries tables. http://bitbucket.org/hsoft/moneyguru/changeset/8cfb2d3d6ab8/

(from [415440da93d6]) [#48 Column Sorting] Sort descriptors persist through table changes. http://bitbucket.org/hsoft/moneyguru/changeset/415440da93d6/

(from [bbff011edff2]) [#48 Column Sorting] Sorting transactions and entries tables by date takes their "position" attribute into account. http://bitbucket.org/hsoft/moneyguru/changeset/bbff011edff2/

(from [abadd7fff0fc]) [#48 Column Sorting] Rows in transactions and entries tables can only be manually moved around if the current sort descriptor is ('date', False). http://bitbucket.org/hsoft/moneyguru/changeset/abadd7fff0fc/