Hello, I am doing some changes in texts of pentaho-server 7.1 (CE, if that matters)

BUT I am still getting strange behaviour.

For example:
I wanted to change button text of "Browse Files" button in PUC. However on some PCs it is changed and on some is not.
I wanted to get rid of "Run in Background" button in report generation dialogue. But even if I have commented it in "pentaho-server/tomcat/webapps/pentaho/mantle/browser/js/browser.fileButtons.js" file, but even after I have restarted pentaho-server several times, the button is still there.

So I would like to ask, if there is some tomcat or other cache that I need to refresh/delete to make such things happen.

I am sorry if its lame question, but I am not very skilled in web apps.