[bugfixing] Viewing own Directory Profile shows multiple markers

[MaximilianoRicoTabo]

• tweak pmpromm_load_profile_map_marker function to narrow sql select whene PU isn't passed in the URL.

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Changes proposed in this Pull Request:

tweak pmpromm_load_profile_map_marker function to narrow sql select whene PU isn't passed in the URL. Basically if PU isn't passed from $wp_query or the request and yet is the profile page we assume it's own profile page.

Closes Issue: #87

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