Fixing bug 1239, reopening books when over an existing close point throws error

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extra : source : 6225d8b119f19a57d536ae7e52d61ed22ed676cb
Merge pull request #430 from einhverfr/1.3

Fixing bug 1239, reopening books when over an existing close point throw...
Quieting some template tests.
Merge pull request #435 from einhverfr/1.3

Quieting some template tests.
Fixing bug 1244, manually entered tax crashes edit screen
Merge pull request #446 from einhverfr/1.3

Fixing bug 1244, manually entered tax crashes edit screen
Fixing bug 1251 that affects some backports only
Merge pull request #449 from einhverfr/1.3

Fixing bug 1251 that affects some backports only
Fixing bug 1241
Updating changelog for 1.3-only fix
Merge pull request #453 from einhverfr/1.3

Fixing 1241, join projection in invoice detail form (1.3-only)
Merge branch '1.3' of https://github.com/ledgersmb/LedgerSMB into ledgersmb-1.3

Github cannot automatically merge latest commits from central, so, I have to do it manually.
Merge branch 'ledgersmb-1.3' into 1.3

Trying to merge.