Issues in ProcessStatus type

Commit 05a3bb5 "Introduce MonitorModel & friends" introduced some regressions:

• Smaps parsing isn't done in a thread which can tamper the framerate measurement. A thread is started though, but not used at all.
• cpuLoad reporting cannot be independent from memory reporting, however memory reporting can tamper cpuLoad.
• Process cpuLoad can be > 1 (one process could use all cores), however that is not considered in current implementation.