Updated nokogiri to 1.6.0

Testing reveals no further changes were needed other than to update the gemspec.

Signed-off-by: Nathan Lowrie <nate@finelineautomation.com>
Merge pull request #44 from FineLineAutomation/master

Updated nokogiri to 1.6.0
Change the order so you can add_text WITH placeholders to be processed afterwards by add_field
newer versions of LibreOffice can't open files with duplicates image names
Update report.rb

now xml are saved without formatting
Loosen nokogiri version dependency
Merge pull request #47 from lx00st/master

saves xml without formatting
Bumped rubyzip version to >= 1.0.0
Made @collection readable inside section block
Merge branch 'master' of https://github.com/benjineering/odf-report

Conflicts:
	lib/odf-report/section.rb
	odf-report.gemspec