support for web of knowledge, new ui for external queries

Hi,

I've completed a beta version of pyblio with support for web of
knowledge. The new version uses the new code from the 1.3 branch,
which means:
 - the UI does not freeze during queries
 - it is possible to interrupt queries

Instead of fetching the results in a new pyblio window, a separate
window is opened, and users can navigate the entries, picking up the
ones of interest.

See http://pybliographer.org/Roadmap_for_1.3/Integration_in_baseline
for screenshots.

Feel free to try the code, available in
gobry-RCRJoSF0iyBS/[email protected]/pyblio--legacy--1.3 (available from
ftp://arch.pybliographer.org/archives/2007). Please note this requires
a working install of pyblio 1.3 (see
http://pybliographer.org/Development/1.3).

I'm definitely interested in feedback regarding:
  - the UI
  - conversion from the external database to BibTeX. This is not yet
complete, so feel free to send me queries for which the conversion is
not satisfactory.

Cheers,

--
Fr=E9d=E9ric

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