By Alun John, Dhara Ranasinghe and Stefano Rebaudo LONDON (Reuters) -France's financial markets are riding a roller-coaster as the country grapples with one of its worst political crises in decades, and while sentiment is improving, the bumpy ride is not over. French Prime Minister Sebastien Lecornu has promised to suspend a landmark pension reform until after the 2027 election, sacrificing one of President Emmanuel Macron's achievements to ensure the government's survival. Here's a look at where market ...