Fix copy-paste error with dihedral angle.

Coverity scan found a minor bug forcing repaint of dihedrals.

Change-Id: I27f3bcb2296423f4b783b47b1a581eb4ca4bf044
Merge topic 'FIX_dihedral-error' into master

e26558fc Fix copy-paste error with dihedral angle.
Automated update of translation templates (POT) using latest strings.

Change-Id: Idba55093eec7517844553d8e39cd16d1cdadbde8
Use Eigen3 in preference to Eigen2 if found, but in support mode.

Eigen3 allows a staged migration to the new API. This patch enables
building with either Eigen2 or Eigen3 with complete compatibility.
Future versions of Avogadro can use Eigen3 directly. In the meantime,
both version 2.x and 3.x are now supported.

Change-Id: Ibae3a7ca719124af73f52a19244beb9a2cbf180e
Automated update of translation templates (POT) using latest strings.

Change-Id: I20a5041d0427424e53e0eb13f33fa85f71d7d525
Merge topic 'ENH_eigen3-support' into master

3cc14da0 Use Eigen3 in preference to Eigen2 if found, but in support mode.
Automated update of translation templates (POT) using latest strings.

Change-Id: I8c2f421dd7c47847f54da276cf360372b7614109
Automated update of translation templates (POT) using latest strings.

Change-Id: I2b57d2dbef208d93aacae8586098fd7dff4b1797
Automated update of translation templates (POT) using latest strings.

Change-Id: I3d2076c510d9cb1728ea9fc0617d875536f98c54
Import gl2ps 1.3.8 for upcoming Avogadro bugfix release.

Change-Id: I5fd18a6dc1599cf868336dd1733d0fc684e9dcb2
Fix Mac Info.plist template to include hidpi (Retina) support.

Change-Id: Ic338a2771ac662e1e3449321362b4023f9a8db30
Merge topic 'FIX_enable-Mac-retina' into master

fe1b64aa Fix Mac Info.plist template to include hidpi (Retina) support.
Automated update of translation templates (POT) using latest strings.

Change-Id: If3080e7ae3cd28b1d3f5638b80393ddbd2b8415c
Automated update of translation templates (POT) using latest strings.

Change-Id: I4be2a310c7cc070699ea94c9be87de25d98c542d
Use the new molecule signal instead of clearing

Full or partial clearing of the molecule seems hackish, and is likely
to have unintended side-effects. Intead, have QTAIM emit a signal to
let the main window know a new molecule is ready. This then allows other
variables to be cleared correctly, and prevents implicitly overwriting
the active molecule.

Change-Id: Ie4968dbe3733872688bc20130e9c3778909b7e5f
Merge topic 'qtaim-new-mol-signal' into master

b3f865f1 Use the new molecule signal instead of clearing
Merge topic 'FIX_gl2ps-138-import' into master

467ba214 Import gl2ps 1.3.8 for upcoming Avogadro bugfix release.