split-up .gitignore more & added pkg-mgmt section

/*

!/.*

# files that will never need tracking

# caches, history

/.cache

/.viminfo

/.*_history

# flags, timestamps

/.sudo_as_admin_successful

/.zsh-update

/.zcompdump*

# other version control systems

.svn/

# package management systems

/.pip

/.gem

/.bundler

# logs, databases

*.log

*.sqlite

/.zcompdump*

# temporary, backup

*.temp