2.0.0 release candidate 1

update to Ubuntu 18.04 (#104)

* additional packages for ubuntu18.04

* add path to local user binary directory

* Added vagrantfile for 18.04

* use ubuntu18.04 branch of SIRF-SuperBuild

* remove install of gcc 6

* updates

* remove checkout of ubuntu18.04 SIF-SuperBuild tag

* Use system boost

* use bento box

* Added 50Gb VDI disk image

https://www.virtualbox.org/manual/ch05.html

* builds VM with vagrant

currently doesn't find the system Boost.

* add port forwarding, add 32 Mb video ram, 50 Gb HDD

* use system boost

* delete sirf_disk.vdi

* removed links to specific VM and SuperBuild branches

requires https://github.com/CCPPETMR/SIRF-SuperBuild/pull/149 first

* use globbing for resetting *URL and *TAG

* set USE_ITK=ON

* created function find_boost_version

* moved shell provision script to file

closes #114

* install libhdf5-dev

* vram is in modifyvm section

https://www.virtualbox.org/manual/ch08.html

* indentation fix

* removed comment

* separate the install steps

* multi line install

* added bootstrap_ubuntu.sh script

* install missing boost libraries

* removes autosuspend notification

closes #118

* add info on 2.0rc1

* builds ubuntu18.04 SuperBuild

* build ubuntu18.04 branch of superbuild

* removed conflict message

* changed VM name

* uses SuperBuild master

* removed -V command

* checks if user and homedir is already created

* bugfix

* bugfix~~

* fix test dir existence

* install spyder and jupyter in pip script

* force spyder 3.2

* manual configure jupyter

* info on manual step to configure ip for jupyter

* add info on jupyter config

* removed reference to specific branches

* updated VM name

* add new version

* update doc

* clean up