I performed the steps needed.
I unzipped AlfrescoMyShareLocale-master.zip and copied mysharelocale-extension.amp to /opt/alfresco-4.2.f/amps_share and I ran the apply_amps.sh script.
Below the result, but when I restart Alfresco I do not get a dropdown box for selecting a language.
Regards,
Frank
sudo bash apply_amps.sh
This script will apply all the AMPs in amps and amps-share to the alfresco.war and share.war files in /opt/alfresco-4.2.f/tomcat/webapps
Press control-c to stop this script . . .
Press any other key to continue . . .
Module 'org.alfresco.module.vti' installed in '/opt/alfresco-4.2.f/tomcat/webapps/alfresco.war'
   -    Title:        Vti
   -    Version:      1.3
   -    Install Date: Sat Jun 14 19:50:09 CEST 2014
   -    Description:   Alfresco Vti Extension, provides Sharepoint protocol
Module 'org.alfresco.integrations.google.docs' installed in '/opt/alfresco-4.2.f/tomcat/webapps/alfresco.war'
   -    Title:        Alfresco Google Docs Integration
   -    Version:      2.0.4
   -    Install Date: Sat Jun 14 19:49:46 CEST 2014
   -    Description:   Alfresco Docs Integration
Module 'org_alfresco_module_wcmquickstart' installed in '/opt/alfresco-4.2.f/tomcat/webapps/alfresco.war'
   -    Title:        Web Quick Start
   -    Version:      1.0
   -    Install Date: Sat Jun 14 19:49:16 CEST 2014
   -    Description:   Web Quick Start
Module 'org_alfresco_module_wcmquickstartshare' installed in '/opt/alfresco-4.2.f/tomcat/webapps/share.war'
   -    Title:        Web Quick Start Share
   -    Version:      1.1
   -    Install Date: Sat Jun 14 19:50:49 CEST 2014
   -    Description:   Web Quick Start Share Module
Module 'org.alfresco.integrations.share.google.docs' installed in '/opt/alfresco-4.2.f/tomcat/webapps/share.war'
   -    Title:        Alfresco / Google Docs Share Module
   -    Version:      2.0.4
   -    Install Date: Sat Jun 14 19:50:41 CEST 2014
   -    Description:   The Share side artifacts of the Alfresco / Google Docs Integration.
Module 'org.alfresco.module.my-share-locale' installed in '/opt/alfresco-4.2.f/tomcat/webapps/share.war'
   -    Title:        My Share Locale
   -    Version:      0.1
   -    Install Date: Sat Jun 14 19:50:32 CEST 2014
   -    Description:   This is the dashlet and login window allowing configuration Share locale.
About to clean out /opt/alfresco-4.2.f/tomcat/webapps/alfresco and share directories and temporary files…
Press control-c to stop this script . . .
Press any other key to continue . . .
Cleaning temporary Alfresco files from Tomcat…