Merge pull request #156 from Useful-Innovation/create-invoice

Create invoice view
added send invoice to fortnox
Merge pull request #157 from Useful-Innovation/johans-fixes

added send invoice to fortnox
Fixed titles on closed projects
Merge pull request #158 from Useful-Innovation/davids-fixes

Fixed titles on closed projects
fixed totals on times on edit page
Merge pull request #159 from Useful-Innovation/johans-fixes

fixed totals on times on edit page
New view for displaying info about closed projects

*Created a new view and added some content to it.
*Created a function of the feature to display uploaded files in the
helpers.php
Merge pull request #160 from Useful-Innovation/create-details-view

New view for displaying info about closed projects
code clean-up

*Edit project view is now using the display_purchase_file()
Merge pull request #161 from Useful-Innovation/changes

code clean-up
changed some units
Merge pull request #162 from Useful-Innovation/changes

changed some units
added invoice number, date & preview
Merge pull request #163 from Useful-Innovation/johans-fixes

added invoice number, date & preview
kr to sek & added confirm on send invoice
Merge pull request #164 from Useful-Innovation/johans-fixes

kr to sek & added confirm on send invoice
fixed bug on create new page
Merge pull request #165 from Useful-Innovation/johans-fixes

fixed bug on create new page
fixed invoice issue