Developing page refresh (1)

## v0.2.0902
## for ticket [177]
Developing page refresh (2)

## v0.2.0903
## for ticket [177]

First try on calling lnapp.run( ) on POST
Developing page refresh (3)

## v0.2.0905
## for ticket [177]

Included button - still as <a href>
Developing page refresh (4)

## v0.2.0906
## for ticket [177]

not bugged but not working
Developing page refresh (5)

## v0.2.0908
## for ticket [177]

don't work with lnapp.run( )
bug:
ValueError: signal only works in main thread
Developing page refresh (6)

## v0.2.0910
## for ticket [177]

It's working, but the charts are tiny.
Merge pull request #5 from rodrigodub/Refresh-button

Refresh button