[fdo-trac] #758: Enable HTTP compression for WMS and WFS providers

[FDO]

#758: Enable HTTP compression for WMS and WFS providers
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   Reporter:  jng           |       Owner:  gregboone
       Type:  enhancement   |      Status:  new      
   Priority:  major         |   Milestone:           
  Component:  WFS Provider  |     Version:  3.6.0    
   Severity:  3             |    Keywords:           
External_id:                |  
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 The WMS and WFS providers should utilise HTTP compression

 From a cursory glance of what I think is the code where both providers
 make their http requests (FdoOwsHttpHandler.cpp) I see that the libcurl
 option to use compression (CURLOPT_ENCODING) has not been set.

 While performance gains would be negligible for the WMS provider (given
 WMS servers serve raster imagery which is either already compressed or
 hard to compress anyway), the WFS provider should get significant
 reductions in download times of WFS responses as they are text-based and
 usually have good compression ratios.

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Ticket URL: <http://trac.osgeo.org/fdo/ticket/758>
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