Drozer tag 2.4.0

incrementing the drozer version number

update polarisviewer module to output exploit to /tmp/ rather than dr…

…ozer install location

tagging 2.3.1

tagging drozer

tagging 2.2.2

tagging 2.2.1

2.2.0 release

tagging v2.1.0

Tag for 2.0.0 release (2012-12-14).