Fit map to bounds of available markers

Different coloured marker for the current_user's location
Fit map to bounds of available markers

Clean up redundant code and variables
add signin message to those not signed in and trying to access signed in features
Add maximum zoom limit to map search results
got rid of unnecessary soundcloud logic
made user urls pretty
Some minor flow changes to improve UX
clean up show page and organize javascripts
Embed location form in musician sign up page
Minor bug fixes
Add name field to edit form
Include blank field for select box for instruments and looking for
Minor edits to musician form/flowndant code
fix new user form