All about changelog.txt?
Using Jamroom
Reload means to re-download the copy from jamroom.net.
Example:
You have version 1.5.0 of some module, I fix it and upload version 1.5.1. You say "it still has a problem", so I upload ANOTHER change.
In this circumstance, the thing being fixed is still in version 1.5.1, so rather than changing the version to 1.5.2 i'll as you to "reload" the module.