CsvOutput prevents Stream GC

[marklister]

See #21.

Test case:

package com.github.marklister.collections.io
import Utils._

object MemTest {

  def main (args:Array[String]):Unit={
    println("Attach monitor, press enter")
    readLine()
    var f = new java.io.FileWriter("/dev/null")
    def st= Stream.continually((1,2))
    st.take(10000000).writeCsv(f)
    f.close
    f=null
    System.gc
  }
}

Results:

[marklister]

ffef548 fixes.

Yes, i know the times are out of order -- I went back to profile the bug after I'd fixed it!

[marklister]

@ms-tg, hopefully v1.1.1 will work for you. I'm not going to be available much for the next few weeks. Good luck!

[ms-tg]

@marklister thank you so much, fix looks great, we'll upgrade.