Case sensitivity in filing module

[ghost]

The readme implies that the filing module is case-sensitive. However this is not entirely true: It converts the text to lower case before searching for the keywords. The problem is: If you have an upper case character in your keyword, for example because it is a name or an acronym, the keyword will never match.

Suggested fix Either specify in the readme that the keyword list has to be lower case or modify the code such that it converts not only the text to be searched, but also the keywords.

[virantha]

Fixed in 0.5.2 (keywords are now lower-cased before the documents are searched)