Updated podspec version to 1.5.2
Updated podspec version to 1.5.2

artifacts/DTFoundation,ShengQiangLiu/DTFoundation,z8927623/DTFoundation,artifacts/DTFoundation,ywzw2013/DTFoundation,devontech/DTFoundation,1yvT0s/DTFoundation,SanjoDeundiak/DTFoundation,sbausis/DTFoundation,flatworld/DTFoundation,nrcmedia/DTFoundation,Cocoanetics/DTFoundation,vlondon/DTFoundation,programming086/DTFoundation,flatworld/DTFoundation,JasperYanky/DTFoundation,JasperYanky/DTFoundation,artifacts/DTFoundation,SanjoDeundiak/DTFoundation