Add new features to user guide

[kofiav]

• Ability to modify the institution to location mapping
• Ability to set an author's main institution if he or she is affiliated with multiple institutions
• Going to Edit -> Preferences -> Properties -> socialnetwork (dropdown) to achieve the above

[kofiav]

• Ability to specify the time interval when visualizing publication count with charts

[kofiav]

• Visual style selector removed from user panel. Only alternative to switch visual styles is to use the Styles panel provided by Cytoscape.

[kofiav]

• Ability to generate charts

[kofiav]

• Add note on Java 7 / Java 8 discrepancy. Network summary panel is not updated properly when using Java 7 (described in #41). Unsure why ...

UPDATE: Issue still present in Java 8

[kofiav]

• Mention that the year filter for publications hides nodes instead of deleting them. One consequence of this is that it is much better for users interested in reducing the size of a network to delete the superfluous nodes rather than hiding them as this would interfere with the filter.

[kofiav]

• Ability to automatically generate PubMed queries

[kofiav]

• Add instructions on how to export Scopus documents that contain affiliation data (& a list of supported document types from Scopus)

[risserlin]

in the absence of feature to filter network by initial query add step by step instructions on how to generate figure 3B from the f1000 social network app paper