Update elements.rst

it's not perfect, but better than nothing.
Merge pull request #289 from chrissharkman/patch-1

Update elements.rst
For absolute positioning vPos and hPos need to be set to POS_ABSOLUTE
Update CONTRIBUTING.md

misspelling
Merge pull request #339 from franzholz/patch-2

Update CONTRIBUTING.md
[FIXED] https://github.com/PHPOffice/PHPWord/issues/340
[FIXED] https://github.com/PHPOffice/PHPWord/issues/340
Set the right method name for addShape() in PHPDoc @method for AbstractContainer.
Merge pull request #302 from basjan/absolute-positioning

For absolute positioning vPos and hPos need to be set to POS_ABSOLUTE
Merge pull request #302 from basjan/absolute-positioning
Merge pull request #302 from basjan/absolute-positioning
Merge pull request #356 from GMTA/develop

Set the right method name for addShape() for AbstractContainer
Merge pull request #356 from GMTA/develop
Update CONTRIBUTING.md
Merge pull request #366 from franzholz/patch-1

Update CONTRIBUTING.md
Update CONTRIBUTING.md

The PHPUnit tests run into error messages if PHPWord has not been installed by Composer.
Merge pull request #373 from franzholz/patch-3

Update CONTRIBUTING.md
Update installing.rst

Show the way how to install PHPWord using Git.
Merge pull request #374 from franzholz/patch-3

Update installing.rst
Merge remote-tracking branch 'upstream/master' into develop

Conflicts:
	docs/elements.rst