Merge pull request #54 from alexzaporozhets/#HE-2

#HE-2 features in progress
Merge pull request #55 from alexzaporozhets/#HE-11

#HE-11 features in progress
Merge pull request #56 from alexzaporozhets/#HE-11

#HE-11 features in progress
Merge pull request #57 from alexzaporozhets/#HE-11

#HE-11 translate page features in progress
Merge pull request #58 from alexzaporozhets/#HE-11

#HE-11 translate features in progress
Merge pull request #59 from alexzaporozhets/#HE-11

#he 11
Merge pull request #60 from alexzaporozhets/#HE-8

#HE-8 fixed texts "about company" and "about HE"
Merge pull request #61 from alexzaporozhets/#HE-11

#HE-11 "hardware and performance" tabs
Merge pull request #62 from alexzaporozhets/#HE-11

#HE-11 "hardware and performance" tabs
Merge pull request #63 from alexzaporozhets/#HE-11

#HE-11 "hardware and performance" tabs
Merge pull request #64 from alexzaporozhets/#HE-11

#HE-11
#HE-13 sitemap.xml
Merge pull request #66 from alexzaporozhets/#HE-13

#HE-13 sitemap.xml
#HE-13 open robots.txt
Merge pull request #67 from alexzaporozhets/#HE-13

#HE-13 open robots.txt
#HE-13 sitemap.xml
#HE-11 plesk panel tab content in progress
#HE-11 "plesk panel" tabs in progress