modified reports related translations and a few email templates
Merge remote-tracking branch 'upstream/master' into mywork
cs translation update
extract hardcoded string into locale
Merge pull request #431 from kubabrecka/extract_strings12

extract hardcoded string into locale
Merge pull request #430 from kubabrecka/cs_update12

cs translation update
Merge pull request #429 from tangramor/master

Add some missed translations for server.zh_CN.yml