base class for searching
expose a collection

it's simpler if we join the qualifiers...
fixed using statements
fixed name of file
Add basesearchrequest to all projs
Merge pull request #301 from hahmed/search-base-class

Base class for searching GitHub
Refactor SearchIssuesRequest to match the API
Fix spelling mistake
Add sort order to parameters
Add unit tests
Remove skip from unit tests
Keeping line lengths to about 80
Fix how params are added to querystring
Change tests to use hard coded query strings
Hard code result string in some more tests
Fix incorrect URL
Add links to search doco for issues request props
Add ToParamater extension method on Enums

To extract the Value field from the Parameter Attribute