* new command: create-repo-rev-file, to separate repo rev file creation and uploading.
    * command up-repo-rev only uploads the already created repo rev file.
    * type fixed REPO_REV_FILE_VARS instead of REPO_REV_FILE_VARAIBLES
    * some rearranging of parser creation, and removed redundant members from CommandLineOptions
    * moved the discovery of info+map's file type to svnTree.py