Added new cache class: DictCache
Fixed typo in excluded file names.
Fixed random errors during removing cache files in Windows.
Added benchmark.py test.
Fixed typo in ShelveCache log message.
Updated docs.
Fixed errors handling by console.
DictCache set to default cache system.
Updated docs.
Release 0.5.1
Fixed testing command new with already existing site.
Merge pull request #5 from lecnim/development/expanded_core_classes

Development/expanded core classes