Boulder Problems

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v88. Adding more ads to try to cover expenses of mantaining the server for the app.
v86. Fixes a problem that made some boulders not showing in the list. v85. Mantain boulder list position when going back. v84. Italian version (thanks to Simone Ferraguti) v83. French version (thanks to David). v82. Minor bug fixes. If you find errors, please tell me in pglez82 at gmail.com. Thanks!