Updated fabfile (bug 1020500)

This updates the fabfile to follow the changes made to the
upload_new_marketplace_package management command in zamboni.
Fixed to not use --slug option
Commit from Mozilla Verbatim by user havarh.: 171 of 171 strings translated (0 fuzzy).
Commit from Mozilla Verbatim by user havarh.: 171 of 171 strings translated (0 fuzzy).
fabfile: set DJANGO_SETTINGS_MODULE env variable.
Commit from Mozilla Verbatim by user rpmdisguise-otros@yahoo.es.: 171 of 171 strings translated (0 fuzzy).
rewrite category cache with API data after fetching from package (bug 1029612)
add more button to preloaded data category pages (bug 1029612)
set scroll on preloaded data update
load two pages on first preloaded app refresh
add bn-BD (bug 1036190)