added default gitignore and gitattributes
SPOJ 1334 - calcula
SPOJ 1386 - Bafo
SPOJ 1 - Test
SPOJ 840 - Cofre
CodeForces 262A - Roma and Lucky Numbers
CodeForces 1A - Theatre Square
CodeForces 275A - LightsOut
CodeForces 4A - Watermelon