Connectivity matrix is now dynamically populated.  Now possible to search by connectivity.  Results from all searches can be viewed in a connectivity (sub-)matrix.
Fixed #68 - unification of markers phraseology
Fixed #113 - Make green in "Excitatory" and that in the neurons' type names consistent
Fixed #133 - add <= and >= as options for the ephys search
Merge branch 'unify_markers_phraseology' of https://github.com/hippocampome/php
Merge branch 'neuron_pg_excit_font_color' of https://github.com/hippocampome/php
Merge branch 'ephys_search_gteq_lteq' of https://github.com/hippocampome/php
Merge branch 'connectivity_page_overhaul' of https://github.com/hippocampome/php

Conflicts:
	connectivity.php
	search.php