Adding Utils.cpp and Utils.h to the project
Adding UtilsTests.cpp
Adding Position and First Sentence Overlap Features to iSpreadRankStrategy
Adding Sentence class and updating PowerpointForgery and Tests projects
Adding the Centroid distance feature to iSpreadRank algorithm
Fixing merge conflicts
Adding Date Classifier classes
Merge branch 'master' into iSpreadRank_v2
Merge branch 'master' into iSpreadRank_v2
Merge branch 'master' into iSpreadRank_v2
Merge branch 'master' into iSpreadRank_v2
Modifying the CMakeLists.txt files of projects Tests and PowerpointForgery
Rectifying some code lines according to Paul's comments
Removing some empty lines here and there
Merge branch 'master' into iSpreadRank_v2

Conflicts:
	src/PowerpointForgery/CMakeLists.txt
	src/PowerpointForgery/PowerpointForgery.vcxproj
	src/PowerpointForgery/PowerpointForgery.vcxproj.filters
	src/Tests/CMakeLists.txt
	src/Tests/Tests.vcxproj
	src/Tests/Tests.vcxproj.filters
Merge pull request #21 from PaulDib/iSpreadRank_v2

New iSpreadRank version and a Date classifier