* added markdown-file for a list of Todos
* refactored StarExecCommands-Module
  * hopefully it's now easier and less redundant to use the supplied methods
  * usage:

        -- get a connection to starexec
        con <- StarExecCommands.getConnection
        -- call a command with the connection
        loggedIn <- StarExexCommands.checkLogin con

  * session-management:

        -- apply ONLY to cookies from starexec.org
        -- get session-ccokies
        cookies <- StarExecCommands.getSesseionCookies
        -- save session-cookies
        StarExecCommands.setSessionCookies cookies
        -- delete session-cookies
        StarExecCommand.deleteSessionCookies