Description of problem:
When I try to upload binary configuration file (created from /dev/urandom), WebUI says me:

Macro end tag is required.
Macro start tag is required.


Version-Release number of selected component (if applicable):
spacewalk-java-1.2.39-29.el5sat


How reproducible:
always


Steps to Reproduce:
1. Create config channel
2. Configuration -> Configuration Channels -> <your_channel> ->
   -> Upload configuration files:
       File to Upload *: choose file created with
         `dd if=/dev/urandom of=/home/pok/Desktop/aaa bs=1024 count=10`
       File Type: Binary file
       Filename/Path *: /etc/jhutar-uploaded.bin
       Keep defaults on other places
3. Click "Upload Configuration File"


Actual results:
Error message appears:
> Macro end tag is required.
> Macro start tag is required.

Also "Macro Delimiters" change to:
  Start Delimiter: |   (instead of "{|")
  End Delimiter: |   (instead of "|}")


Expected results:
File should be uploaded