prefill helpshift email address with default device account
automatically add tags to helpshift metadata
add metadata to helpshift conversation
Merge branch 'develop' into issue/1613-prefill-helpshift-data
wrong field name was used for blog url
add user entered username and url to the helpshift metadata
rename s/TAGS/Tag/ and new MetadataKey enum
pre-fill helpshift name with entered user name or primary email address
force blogList to be a string
Add metadato to showFAQ function and
Merge branch 'develop' into issue/1613-prefill-helpshift-data

Conflicts:
	WordPress/src/main/java/org/wordpress/android/ui/accounts/NuxHelpActivity.java
	WordPress/src/main/java/org/wordpress/android/ui/prefs/PreferencesActivity.java
	WordPress/src/main/java/org/wordpress/android/util/HelpshiftHelper.java
Merge pull request #1632 from wordpress-mobile/issue/1613-prefill-helpshift-data

fix #1613 prefill helpshift data