delete main.pdf
Merge branch 'master' of https://github.com/Dimitris-Kouzapas/HO

Conflicts:
	draft/main.pdf
delete main.pdf
Merge branch 'master' of https://github.com/Dimitris-Kouzapas/HO
Merge branch 'master' of https://github.com/Dimitris-Kouzapas/HO
Merge branch 'master' of https://github.com/Dimitris-Kouzapas/HO
Merge branch 'master' of https://github.com/Dimitris-Kouzapas/HO
Merge branch 'master' of https://github.com/Dimitris-Kouzapas/HO
Merge branch 'master' of https://github.com/Dimitris-Kouzapas/HO
Merge branch 'master' of https://github.com/Dimitris-Kouzapas/HO
Merge branch 'master' of https://github.com/Dimitris-Kouzapas/HO
Merge branch 'master' of https://github.com/Dimitris-Kouzapas/HO
commit all changes: