Project name cannot contain slash/backslash

Originally created by: tomasz.p...@gmail.com
Originally owned by: tortoisesvn

What steps will reproduce the problem?
1. Name added project i.e. "CommitMonitor/trunk"
2. Use "Show diff" option on any commit in revision list.

What is the expected output? What do you see instead?
Error message box says:

Can't open file 'C:\Documents and Settings\...\Application
Data\CommitMonitor\CommitMonitor\trunk_3194': The system cannot find the
path specified.

(this was slightly modified according to example project name given above).

What version of the product are you using? On what operating system?
1.0.0.201

Please provide any additional information below.
This is a minor issue (only happens when one uses slash/backslash).
Proposed solution:
- disallow such path-like characters in project name
- convert all path-like characters to something else (i.e. underscore)
before looking up cached diffs.