Expandable description fields

All long description texts can now be expanded by pressing the three
dots (...) below the long text.
Remember if texts are expanded after reload

* Expanded texts are expanded after reload as well
* Changed truncation length to be specific for each item type
* Fixed bug when re-opening a newly saved task
* Removed the parentheses around the three dots and 'less'
Fixed bad links from last commit
Merge pull request #49 from fredrikpersson/expandable-description2

Expandable description fields