problem with type of product

the column should be product_type
Missing date_start, date_end in webserver server_invoice.php
Correct view greek language in PDF
Correct view greek language
Merge pull request #1900 from ndrosis/patch-5

Correct view greek language in PDF
Merge pull request #1901 from ndrosis/patch-6

Correct view greek language
Merge pull request #1894 from braito4/patch-3

Missing date_start, date_end in webserver server_invoice.php
Typo error
- Fix: [ bug #1593 ] Spanish Localtax IRPF not being calculated since
3.6.0 in supplier invoices when adding a line
Merge remote-tracking branch 'origin/3.5' into 3.6
Merge pull request #1893 from braito4/patch-2

problem with type of product
FIX: double header
Merge pull request #1919 from GPCsolutions/fixtimespent

FIX: double header
Merge remote-tracking branch 'origin/3.6' into 3.6_backported

Conflicts:
	ChangeLog
Prepare 3.6.1
Prepare 3.6.1
Merge branch '3.6' of git@github.com:Dolibarr/dolibarr.git into 3.6
Fix: packager
Fix: doxygen
Fix: phpcheckstyle from phpcs 1.5.5 (closing tags and & char on
parameter).