use instance variable for locking the email sending in EmailHandler
changed default locations of virtualenv and pip download cache; added small helper scripts in repo root to reduce keying
rewrite Makefile as python script for windows and unix
change default venv name; rename m.py to make.py; delete makemoinmenu.py; rerun "python quickinstall.py" after applying this cs
simplify .hgignore by ignoring entire wiki/ directory
rewrite requirements.rst, install.rst, and development.rst to document make.py
Merged thomaswaldmann/moin-2.0 into default
Merged in RogerHaase/moin-2.0 (pull request #185)

changed default locations of virtualenv and pip download cache; added small helper scripts in repo root to reduce keying