I am in a situation where we have used a plugin in our project, I am a front end developer so, a guy blamed on me that I have made changes directly inside the plugin code which is obviously a bad practice but I am pretty much sure I didn't do it.
We are using subversion and Trac for version control etc. The project ( and changes ) are very old almost 2-3 months old. Here is my question, How can I know that how many people and who has edited that one( suspected ) file till date?