Fix old namespaces being mentioned in the documentation

CMakeLists.txt

@@ -10,7 +10,7 @@ set(META_APP_URL "https://github.com/${META_APP_AUTHOR}/${META_PROJECT_NAME}")
 set(META_APP_DESCRIPTION "C++ library to read/write passwords from/to encrypted files")
 set(META_VERSION_MAJOR 5)
 set(META_VERSION_MINOR 0)
-set(META_VERSION_PATCH 0)
+set(META_VERSION_PATCH 1)
 set(META_ADD_DEFAULT_CPP_UNIT_TEST_APPLICATION ON)
 
 # add project files

io/passwordfile.cpp

@@ -168,7 +168,7 @@ void PasswordFile::create()
  * \throws Throws ios_base::failure when an IO error occurs.
  * \throws Throws Io::ParsingException when a parsing error occurs.
  * \throws Throws Io::CryptoException when a decryption error occurs.
- * \throws Throws ConversionUtilities::ConversionException when a conversion error occurs.
+ * \throws Throws CppUtilities::ConversionException when a conversion error occurs.
  */
 void PasswordFile::load()
 {