Merge pull request #17 from ledgersmb/master

bringing this up to date
Adding logic to reverse manual taxes
Merging from github
adding basis reversal too
Merge pull request #124 from einhverfr/master

Fix for reversing manual taxes
Fixing badly named input that caused date selectors on some reports to stop working
Merge pull request #125 from einhverfr/master

Fixing badly named input that caused date selectors on some reports to s...
check on account.category
Merge pull request #128 from hvierendeels/master

check on account.category+docum
Changelog update from 1.3
fix entry for changelog for tax reversal issue
Fixing bug 1148, cannot attach url
Merge pull request #131 from einhverfr/master

url attachment fix
Merge pull request #27 from ledgersmb/master

sync over master branch