Better rounding to mBs + multiple graphs support

BUG=None
TEST=Manual

- Using round() to get  mBs to one decimal point
- logtime graphs now allow for multiple graphs data be collected at
  once. To match the template changes,'title' and 'vaxis' are now gone.
- Added exception to getSystemParameters() to account for weird lines in
  lsb-release
- System information now formatted properly + field 'release' now added
  to html_args

Change-Id: I644d9ebfa1071f51fd947d07dbed44700a988344
Signed-off-by: Thiago Goncales <thiagog@chromium.org>
1 file changed