7.7 build logs

1. anaconda.txt This is build log for anaconda 5.2 on Linux on June 2018
2. sagemath.txt This is build log for sage math 8.2 on Linux on June 2018
3. fricas.txt This is build log for Fricas 1.3.3-1 on Linux on June 2018
4. giac.txt This is build log for giac 1.4.9.59-4 on Linux on June 2018