For #1017. Update jcabi, add xcop.

[zCRUSADERz]

For #1017

• Updated jcabi-parent to 49.5
• Fixed all xml files
• Added xcop to travis and rultor

All files were fixed automatically using xcop.

[0crat]

@krzyk/z please, pay attention to this pull request

[0crat]

Job #1052 is now in scope, role is REV

[0crat]

@krzyk/z everybody who has role REV is banned at #1052; I won't be able to assign anyone automatically; consider assigning someone manually (as in §19), or invite more people (as in §51), or remove the job from the scope (as in §14)

[krzyk]

@rultor merge

[rultor]

@rultor merge

@krzyk OK, I'll try to merge now. You can check the progress of the merge here

[rultor]

@rultor merge

@krzyk Done! FYI, the full log is here (took me 22min)

[0crat]

Job gh:teamed/qulice#1052 is not assigned, can't get performer

[0crat]

The job #1052 is now out of scope

[0crat]

Payment to ARC for a closed pull request, as in §28: +10 point(s) just awarded to @krzyk/z