Splitted KeeShare into secure and insecure parts

KeeShare is now supported in a secure and insecure flavor (set
CMake-Flags accordingly to allow or disallow the corresponding import
and exports)

tests/CMakeLists.txt

@@ -141,7 +141,7 @@ add_unit_test(NAME testsymmetriccipher SOURCES TestSymmetricCipher.cpp
 
 if(WITH_XC_KEESHARE)
     add_unit_test(NAME testsignature SOURCES TestSignature.cpp
-	        LIBS ${TEST_LIBRARIES})
+            LIBS ${TEST_LIBRARIES})
 endif()
 
 add_unit_test(NAME testhashedblockstream SOURCES TestHashedBlockStream.cpp