Proxy caching

[adube]

need

To be able to keep on client-side the images returned by TileCache services

currently

The content outputed by the proxy has no caching support.

proposed

A new boolean parameter "$m_boolCacheEnabled" set to false by default.

Instead of having the option in the TileCache proxy only, we could have it on the others as well, so that in the future we could be to cache other kinds of services outputs.

[adube]

"it on the others as well" --> I mean directly in !Proxy.php instead.

[adube]

Patch pass php sniffer with 0 errors. Patch also include a new sample which demonstrate how to use it.

Please review.

[adube]

New patch that allows the proxy caching per type, i.e. TileCache and WMS.

Please review.

Sample of use in common.php :

//----------------------------
// Proxy caching configuration
//----------------------------

// set TileCache proxy caching only
org_geoprisma_SettingImpl::setTileCacheProxyCaching(true);
org_geoprisma_SettingImpl::setTileCacheProxyCachingExpires(2419200);

// set WMS proxy caching only
org_geoprisma_SettingImpl::setWMSProxyCaching(true);
org_geoprisma_SettingImpl::setWMSProxyCachingExpires(2419200);

// set ALL proxy caching
org_geoprisma_SettingImpl::setProxyCaching(true);
org_geoprisma_SettingImpl::setProxyCachingExpires(2419200);

[adube]

r761, commited. No major issues reported.