Trying to fix .travis.yml for RMG-database project.

This was a direct copy of the RMG-Py project, but it 
needs to be changed if it's for the RMG-database project,
as Travis by default will check out the current project.
Merge branch 'travis'

Travis builds on this RMG-database project now assume the RMG-Py master
is up to date and functioning; they use that, to test the database for
consistency. Currently the tests fail, but that's because there are some
problems with some recent families - the tests themselves seem to be working.

Closes #42
Add explicit hydrogens to forgotten entry in thermo library CH.py

Copied from Beat's commit https://github.com/GreenGroup/RMG-database/commit/0761f5357fd97c2e9a1dd437d41dd4c1bea3083e
Get rid of history comparisons and writing of history in import scripts.
Create a temporary importOldPyDatabase.py script for converting to new adjlist.
Speed up travis testing by using RDKit packages from Ubuntu

I don't think we need the InChI libraries for rdkit
on this project, so we should be able to use the Ubuntu
binaries instead of building from source.
This makes the build much quicker.
Fixed some errors in new reaction families.
Added more solutes.

Conflicts:
	input/solvation/libraries/solute.py
Starting to add Nitrogen Platts groups.

Conflicts:
	input/solvation/groups/abraham.py
Added sulfur groups. Restructured entries.

Conflicts:
	input/solvation/groups/abraham.py
Added some non atom-centered groups for N and S.
Added "A" Abraham parameter for some N and S groups.
Fixed some syntax bugs in the Platts group databases.

Fixed a typo in non-atom centered group files.

Adjacency list had a square instead of curly bracket!

Changed parentheses to curly brackets in some solvation groups.

For some reason these had were parentheses and caused atom
bonding errors.
Merge pull request https://github.com/GreenGroup/RMG-database/pull/43 'bslakman-solvation-fixes'
Add missing molecule in solute library
Add names and descriptions to transport groups databases
Identified a few more species in GRI-mech transport library.

There are still many weird things though. We can re-visit this later.
Fixed some bugs in new reaction families.
Merge pull request #44 from faribas/master

Fixed some bugs in new reaction families.
Thanks Fariba - Travis says we're passing the entire test suite again!
Closes #41
Fixed some bugs in the index numbers, some groups had the same index numbers!