I had a problem in importing brushes in blender 2.79, because in the user preferences there is no import brush add-on. So, Now what to do to solve this. Did blender 2.79 support this. I think,it should ,But how, I don't know.
Activate the Brush addon from User Preferences -> Addon
If u have older version download the addon from here
Launch Blender, then open the User Preferences. Go to the Addons tab. Go to the Import-Export Addons and enable the script.
select the import BrushSet from the file menu
select the folder with your textures and press import
Unwrap your mesh and add a new texture to paint on.
Texture Paint Mode
Under texture tab, press the field which will pop up the texture selection.
all your textures should now be loaded there and you can start painting.