Check all PHPStorm errors (undefined variables and such) and resolve.
Merge remote-tracking branch 'upstream/development' into development
Fixed some formatting and moved wpp-data-tables.css into /css out of third-party; added composer.json
Fixed some formatting and moved wpp-data-tables.css into /css out of third-party; added composer.json
Yes/No fix for checkbox type inputs
Merge remote-tracking branch 'upstream/development' into development

Conflicts:
	default_api.php
Merge pull request #18 from antonkorotkov/development

Yes/No fix for checkbox types
fixed Undefined index
Merge remote-tracking branch 'upstream/development' into development

Conflicts:
	core/class_functions.php
	core/ui/class_wpp_object_list_table.php
	default_api.php
fixed conflicts
Added check for mb_detect_encoding(), fixed reference issue
Check all PHPStorm errors (undefined variables and such) and resolve. - Done
empty -> isset
save_property action fixes; validate_address fixes
Fix for address validation
Merge
Merge pull request #20 from pemaxim/development

Added check for mb_detect_encoding(), fixed reference issue; save_property action fixes
wpi_ -> wpp_
fix conflicts
Merge remote-tracking branch 'upstream/development' into development
small fix