Makes markers textarea readonly

spectroscopy service address is generated differently according to SPECTROS_HOST == localhost or not.

Fix problem when samp was activated : some variables were not properly initialized after code refactoring.

link yafitsv and spectros containers directly through docker-compose yaml configuration rather than through a script rewriting the correct url

add the possibility to switch between K and cm-1 when defining an energy value in spectral lines search

	lines were not removed on upper graph after a new interval selection
        lines display failed after a new box selection

new features :
	display a warning if redshift/velocity not set when plot box is selected
	display lines by groups of ten

jpl database is hidden, need more space to import the data

javascript code splitted in separately imported files for easier comprehension and removal of most of global variables
Update display of autocomplete list for molecules