Log Message:
Update Bear to 2.0.1

2.0.1 (2015-01-23)

Bugfixes:

    Double free problem fixed when descrutor called multiple times.

2.0 (2015-01-20)

Features:

    Rewrite command bear from C to Python.
    Simplified build process with a single module for libear.

Bugfixes:

    Work with empty environment (#69, @YorkZ)
    Filter out redundant entries (#66, @HongxuChen)
    Append to existing compilation database (#63, @p0rnfl4k3s)

1.4.4 (2015-01-09)

Features:

    Improve escaping logic (#67, #68, @SpecLad)
    Reword README file to be more english (#64, @libnoon)