admin: Add modals in details page properly

Update the modal/details/list templates to integrate modals properly.
admin-ui: Replace data attr "reversible" to "caution"
amdin-ui: Update the template of contact-modal
admin-ui: Add popover with instructions in contact-modal

Fix apyrgio/synnefo#80
Merge branch 'feature-admin-details-modals' into feature-admin
admin: Reintegrate eztables with admin

There were a few errors due to the fact aaData has become a tuple
instead of a list.

Fix apyrgio/synnefo#114
Merge branch 'feature-admin-reintegrate-eztables' into feature-admin
admin-ui: Add func to remove item from selected-items table

Fix apyrgio/synnefo#103
admin-ui: Fix JS bug
admin-ui: Update icon-font

Add icon for info.
admin-ui: Add funcs and style for details page and buttons
admin-ui: Minor JS improvement
admin-ui: Fix JS bug in selection of multiple lines

Fix apyrgio/synnefo#66
admin-ui: Set clear-all btn disabled when no items are selected
admin-ui: Update text of show-hide-all button

When a user expands/collapses all the items of a category the text
of the button adjusts.

Fix apyrgio/synnefo#98
Merge branch 'feature-admin-ui-new' into feature-admin
admin: Fix action errors

Fix apyrgio/synnefo#115
Merge branch 'feature-admin-fix-actions' into feature-admin
admin-ui: Seperate javascript files

Now the files are:
* common.js
* tables.js
* details.js

These are imported in the corresponding html files.
admin-ui: Make functional the modals in details pages

Fix apyrgio/synnefo#87