Fix wrong letters
Remove non-working "Append data" button.
Fix tests for Append Mode ghost button
Typo: ocurred → occurred
Fix typo ('accesible' --> 'accessible')
CDB-3900
Merge pull request #713 from CartoDB/CDB-3900

CDB-3900
Merge pull request #710 from mojodna/occurred-typo

Typo: ocurred → occurred
Merge pull request #711 from fureigh/master

Fix typo ('accesible' --> 'accessible')
Merge pull request #696 from CartoDB/wrongletters

Fix wrong letters
Merge pull request #700 from CartoDB/remove-append-data

Remove non-working "Append data" button.
Update README.md
Merge remote-tracking branch 'origin/master' into CDB-3795