Add pandaseq/2.7, used for aligning illumina reads

Signed-off-by: James Oguya <oguyajames@gmail.com>
pandaseq/2.7: cleaning up whitespaces, adding repo url

removing the nasty whitespaces at the end of line

Signed-off-by: James Oguya <oguyajames@gmail.com>
Add Python 2.7.8

Signed-off-by: Alan Orth <alan.orth@gmail.com>