Add a new import mode which handles dates from strings (CSV for instance)
If there is an error in a filter, don't try to use it, just ignore it
Add timestamps to the XML output

Closes #139
Version 3.1.1
Add end date as well to sorting SQL.
Merge pull request #141 from vlad-ghita/patch-1

Add end date as well to sorting SQL.
Fix sorting. close #144

See #143 for description.
Merge pull request #145 from vlad-ghita/patch-2

Fix sorting. close #144
Update error message

Closes #142
Update extension.meta.xml
Merge pull request #146 from hananils/development

Version 3.1.2
Fix range display on index pages
Prevent text selection in calendar
Version 3.2

Add `time` elements to table indexes
Merge branch 'master' of git://github.com/hananils/datetime
Fix invalid meta data