[#1981300] fixed : force array casting when retrieving apache_solr info
Coding Standards fixes
[#1976780] added : Customize the title attribute for the input field.
[#1973792] added by Hala mansour : option to choose to search by current language and language neutral
[#1961180] fixed : don't generate any markup for the popup if there's nothing in it.
[#1365874] by auth : translate other searches labels
[#1935554] by Simon Georges : remove useless files directives in .info files
[#1162604] fixed : added theme suggestions
by jpontani: initialize original_keys variable in case of user search with Solr enabled, causes undefined variable since it never reaches original_keywords
[#1909050] fixed by cosmicdreams : add custom handler only if not already there.
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