add vagrant and installation instructions for ubuntu 18

docs/CMakeLists.txt

@@ -14,6 +14,7 @@ ADD_CUSTOM_TARGET(doc
    COMMAND ${CMAKE_COMMAND} -E create_symlink ${CMAKE_CURRENT_SOURCE_DIR}/extra.css ${CMAKE_CURRENT_BINARY_DIR}/extra.css
    COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/bash2md.sh ${PROJECT_SOURCE_DIR}/vagrant/Install-on-Centos-7.sh ${CMAKE_CURRENT_BINARY_DIR}/appendix/Install-on-Centos-7.md
    COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/bash2md.sh ${PROJECT_SOURCE_DIR}/vagrant/Install-on-Ubuntu-16.sh ${CMAKE_CURRENT_BINARY_DIR}/appendix/Install-on-Ubuntu-16.md
+   COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/bash2md.sh ${PROJECT_SOURCE_DIR}/vagrant/Install-on-Ubuntu-18.sh ${CMAKE_CURRENT_BINARY_DIR}/appendix/Install-on-Ubuntu-18.md
    COMMAND mkdocs build -d ${CMAKE_CURRENT_BINARY_DIR}/../site-html -f ${CMAKE_CURRENT_BINARY_DIR}/../mkdocs.yml
 )
 

docs/admin/Installation.md

@@ -4,6 +4,7 @@ This page contains generic installation instructions for Nominatim and its
 prerequisites. There are also step-by-step instructions available for
 the following operating systems:
 
+  * [Ubuntu 18.04](../appendix/Install-on-Ubuntu-18.md)
   * [Ubuntu 16.04](../appendix/Install-on-Ubuntu-16.md)
   * [CentOS 7.2](../appendix/Install-on-Centos-7.md)
 

docs/mkdocs.yml

@@ -23,6 +23,7 @@ pages:
     - 'Appendix':
         - 'Installation on CentOS 7' : 'appendix/Install-on-Centos-7.md'
         - 'Installation on Ubuntu 16' : 'appendix/Install-on-Ubuntu-16.md'
+        - 'Installation on Ubuntu 18' : 'appendix/Install-on-Ubuntu-18.md'
 markdown_extensions:
     - codehilite:
         use_pygments: False