ChoroPlaybacks

- fixed chord display when bass or improv is on. - melody flag was not showing chords. - improv flag was damaging notes in the bass line. - the word bass in the menu replaced with 7-C (7-CORDAS). - improv flag was delaying the display of the score (bug was when score had anacrusis). - name of the song on top was blurry! Now the font is bigger and in bold. - error in authservice: grace period was not being applied if our WP had a temporary glitch. - trial mode changed: now we have 3 songs (Odeon, Gaucho Corta Jaca and Lua Branca) that work entirely, the 60 sec limit was removed. - auto-login: save credentials securely, auto-login on expired token, pre-fill login screen - score orientation: added menu option in preference with default, landscape and portrait. - bug in landscape mode fixed (app would not start using the preferences, assumed default always). - accepts changes in tempo now, in the middle of the score. - fixed hasRubatoIntro when there are clicks at the beginning of the song, the score would freeze in the first measure and would only start moving then the accompaniment started. Now Clicks are sounded and then score starts do be displayed. No clicks are allowed too. The score starts rolling the moment user presses play.