In IntelliJ Idea 2017.1 you can use the embedded SVN client that sadly is not enabled by default. Here's how you can activate it.
1) Open IntelliJ Idea
2) Menu Help
> Find Actions...
3) Type subversion
to gain access to the subversion related settings. Choose the item Subversion Settings
as highlighted in the following picture.
4) Finally, be sure to uncheck the option Use command line client
.
From now on, in the current project, you'll use the embedded subversion.