Merge pull request #8 from alexmiog/alexmiog_el

Added greek translation!
[IT] translated strings for Rocketfuel
Merge pull request #11 from gialloporpora/master

[IT] translated strings for Rocketfuel
update cs and zh_TW for pull requests which wouldn't merge
L10N update for Czech (cs)
Commit from Mozilla Verbatim by user m@owca.info.: 105 of 105 strings translated (0 fuzzy).
Commit from Mozilla Verbatim by user m@owca.info.: 105 of 105 strings translated (0 fuzzy).
Merge pull request #12 from JasnaPaka/master

L10N update for Czech (cs)
Commit from Mozilla Verbatim by user benoit.leseul@gmail.com.: 105 of 105 strings translated (0 fuzzy).
Commit from Mozilla Verbatim by user kelemeng.: 75 of 105 strings translated (0 fuzzy).
Allow OSCs to have an image/colors
added can_be_hero collection switch (bug 923223)
Commit from Mozilla Verbatim by user kelemeng.: 105 of 105 strings translated (0 fuzzy).
Commit from Mozilla Verbatim by user tonnes.mb@gmail.com.: 99 of 105 strings translated (6 fuzzy).
Commit from Mozilla Verbatim by user tonnes.mb@gmail.com.: 105 of 105 strings translated (0 fuzzy).
Update Add Curator form to support emails
double quotes -> single quotes
Only show hero switch for OSCs
nuke hero flag setting switch
add new languages; bug 927565