check if object is not null
disabled rename button if destination is not set, issue #162
Translated using Weblate (Spanish)

Currently translated at 100.0% (85 of 85 strings)
Translated using Weblate (Japanese)

Currently translated at 100.0% (85 of 85 strings)
Merge branch 'master' of github.com:ruleant/getback_gps
shorten long destination names, issue #16
shorten long destination names depending on screen orientation, issue #16
remove trailing whitespace before appending shortener, issue #16
wrap long line
fix coding style
adjust maxlength
remove item parameter
add onclickevent to rename destination name, issue #162
rearrange Main acitivaty layout, issue #16
adjust max length destination name
add a name to a destination, close #16
Merge branch 'master' into coverity_scan