Merge pull request #130 from statismo/r_0.10.1

update version to 0.10.1
Support for variable dependencies install location.

The variable INSTALL_DEPENDENCIES_DIR is now cached and can be passed
from the command line. When the user does not specify a value from the
command line, the behaviour is the same than before.
Merge pull request #132 from Andreas-Forster/cachedDependenciesInstallDir

Cached dependencies install dir