Add echolevel option

[smasher816]

It would be nice to be able to reduce the echolevel and only show errors when opening files. I am happy trusting that the plugin works and get annoyed by the press enter to continue prompt on every file. Right now I have simply edited the line https://github.com/luochen1990/indent-detector.vim/blob/master/plugin/indent_detector.vim#L71, but this is not portable. Adding a let g:??? = 2 to my vimrc would be a much better alternative.

[ReekenX]

It's sad panda to see this issue open for more than a year.

I had to switch to https://github.com/Khouba/indent-detector.vim which works great and gives available options to silence useless output.

If you are not able to continue project development - update your readme.