Fix js-controller5 crash and other issues

[mcm1957]

closes #106 closes #98

Test sequence for #106

While running js-controller 5 do

• stop ping adapter
• install ping 1.5.3 (or older)
• configure adapter "No host name in state name" not selected
• add device with name a space in the name, i.e. "Fritz Box"
• select "extended info" and "Use name" at device entry
• start the adapter
• The object view should now show a folder (channel) with id "Fritz_Box" and name "Fritz Box". Note that the space has been replaced by an underscrore at the id but not at the name.
• Enter configuration and change the name field to "Fritz_Box". (Replace space by underscore, the name must now match the id)
• After saving and restarting the adapter the adapter will crash.

Using the corrected version the name should be changed to "Fritz_Box"

Note that changes to the name MUST be performed in a way that the id does not change. Whenever the id changes the old state is deleted and a ne state ios created. This did work with old version too.

[mcm1957]

@Apollon77 @foxriver76 Please review as #106 is related to js-controller 5.x