isXML() may need to add more conditions

[gitfish256]

Hi,

Thanks for the nice plugin, the copy xpath at cursor is really useful. When I used this plugin on some xml files which extension is not .xml, it won't return anything. Is it necessary to add isXML() before do the copy? I removed this and tried this with several other text format(e.g., .txt, .csv), other than producing wrong result it looks good, and I got correct result if the content is in xml format. So is it ok to let user decide whether the output is legit rather than do it inside the plugin? Thank you!

[keith-hall]

if you upgrade to Sublime Text 3, you'll see that this plugin will work for any files using XML (or HTML) syntax highlighting, regardless of whether the file has been saved with an XML extension or not. If you are determined to stick with ST2, we may accept Pull Requests to the old ST2 branch if you want to improve the isXML method yourself, but I'm personally only committed to maintaining the ST3 version of this xpath plugin.