Revert "Print line if we have not seen any pids created yet"

This reverts commit cd01ccf7202c40969f509a9bea188c8d01bb95d9.
Handle alternative log format for process start

Some phones (like my samsung) do not log the 'Start proc ...' line in
logcat to indicate process start.  In my case it does log a line like

E/dalvikvm(pid): >>>>>> com.my.package [ more stuff ]

This commit adds support for that format to pidcat.