Merge pull request #10 from mikhail-aksenov/dev-nd

Dev nd
Merge branch 'master' into dev-ma
Merge pull request #11 from mikhail-aksenov/dev-nd

Fixed user adding error. Cancan -> cancancan
Some style fixes
Merge pull request #12 from mikhail-aksenov/dev-ma

Dev ma
Merge pull request #13 from mikhail-aksenov/dev-nd

Dev nd
Timeline alignment finished
Merge branch 'dev-nd' into dev-ma
Merge branch 'master' into dev-ma
Merge branch 'dev-ma'
Fixed backward compatibility for category_tag
Merge pull request #15 from mikhail-aksenov/dev-nd

Dev nd
Navbar go tos are in dropdown
Can search customer by name and email_domain
Fixed Excel export a bit
Can go to ticket by id
Fixed timline