Add ParameterList class with tests

Conflicts:
	test/main.cpp
Fix ParameterList issues
Add url encoding and decoding to ParameterList
Merge pull request #7 from Melzas/add-parameter-list

Add ParameterList class with tests
Fix whitespace encoding and gmock build
Merge pull request #10 from Melzas/fix-encoding-and-building

Fix whitespace encoding and gmock build
add utility functions

hostFromUrl, resourceFromUrl, toString added
toString needed because of gcc bug 52015
listeners and networkWorker added
add token class prototype
expand ServiceConfiguration
fix comment
partially implement token request
few minor fixes
listeners replaced by c++11 features
Service constructor signature fixed

added missing const modifier