Added .cc file for classes/structs that only provided by header
file. Defined non-POD classes' ctor, dtor in .cc file. Moved
implementation code in header file to .cc file for major
classes/strucsts.
Moved URI parser code to uri.h, uri.cc to provide fast URI parser
without Request object initialization.
* src/Makefile.am
* src/Request.cc
* src/uri.cc
* src/uri.h
* test/Makefile.am
* test/RequestTest.cc
* test/UriTest.cc