Merge pull request #123 from SimonGreenhill/master

adding __unicode__ to source
testing
Merge remote-tracking branch 'upstream/master'
Rewrite README to include installation and dev documentation
Merge pull request #129 from NESCent/install-docs

Rewrite README to include installation and dev documentation
readme
Merged master fixed conflict
Merged master fixed conflict
fixing culture search
error handling
error handling update
update for error handling
updated fix for culture search
Merge remote-tracking branch 'stef/culture-search'

Conflicts:
	README.md
Merge pull request #133 from SimonGreenhill/master

Populating source models #50