uwsgitop: pytohn bundled json module is enough
uwsgitop: don't call .endwin() before cursed has been initialized

Fix this traceback when calling uwsgitop without parameters.

Error in sys.excepthook:
Traceback (most recent call last):
  File "uwsgitop", line 24, in exc_hook
    curses.endwin()
_curses.error: must call initscr() first
Merge pull request #5 from xrmx/misc-fixes

Misc fixes
added human_size() function
Display RPS (requests per second)
Merge pull request #7 from Babazka/display_rps

Display RPS (requests per second)
Create LICENSE
fixed #10
Do not crash on monochrome terminals

fixes #11
Display async cores too

By default display only the workers, as usual, but with a 'a' key
press async core display can be enabled. Pressing 'a' again will switch
display mode, and another 'a' will return back to the default display.

fixes #12
Merge pull request #13 from Jajcus/issue_11

Do not crash on monochrome terminals
Merge pull request #14 from Jajcus/issue_12

Display async cores too
prepare for 0.8
Update README