Install man pages and documentation in correct directories

Index: cmake/Modules/DefineInstallationPaths.cmake
--- cmake/Modules/DefineInstallationPaths.cmake.orig
+++ cmake/Modules/DefineInstallationPaths.cmake
@@ -51,7 +51,7 @@ if (UNIX)
     CACHE PATH "The parent directory where applications can install their data (default prefix/share/${_PROJECT_NAME})"
   )
   SET(HTML_INSTALL_DIR
-    "${DATA_INSTALL_PREFIX}/doc/HTML"
+    "${DATA_INSTALL_PREFIX}/doc/qmapshack/HTML"
     CACHE PATH "The HTML install dir for documentation (default data/doc/html)"
   )
   SET(ICON_INSTALL_DIR
@@ -82,7 +82,7 @@ if (UNIX)
     CACHE PATH "The ${_PROJECT_NAME} sysconfig install dir (default prefix/etc)"
   )
   SET(MAN_INSTALL_DIR
-    "${SHARE_INSTALL_PREFIX}/man"
+    "${EXEC_INSTALL_PREFIX}/man"
     CACHE PATH "The ${_PROJECT_NAME} man install dir (default prefix/man)"
   )
   SET(INFO_INSTALL_DIR
