Add missing optimization to 'make install' command

Added missing optimization flags to make install command.
Fix some imprecise position estimates.
Fix bug which could cause ./. genotypes for variants only called in a single window.

Remove git-dependent commands from Makefile

Bioconda requires a stable source archive of the release. Because the git commands would not work when called from the source archive (which is not a git repository) they had to be removed..

Release 1.0