Issue 1911:  Permit folder names to wrap on multiple lines in folder list view so users can see the entire name.

Reduce the default font size used in folder list view to a reasonable size so that long folder paths wrap to fewer lines.
Create new preference option for wrapping folder names in folder list view.

Revert to using an ellipsized folder name as the default.
Permit the folder list item to expand vertically.

Prior to this, in cases where the folder name wraps to mulitiple lines,
it could overflow its box and the overflow was hidden.
Control wrapping of folder names programmatically only

This removes the default settings (ellipsized, single line) from the layout
xml file and implements them programmatically.  This fixes the problem where:
You are viewing a folder list while wrapping is currently on, then you go into settings
and turn wrapping off, after which you are back at the folder list, but the
list is still wrapped.
Readjust settings version number based on current master
Create action buttons to search for folders.
Provide new action bar "find folder" icons
Switch to using the action bar for folder searches.

Eliminate the old-style search dialog box.
Use a more appropriate title when diplaying folder search results.
Switch to using the action bar for folder searches.

Eliminate the old-style search dialog box.  A similar change
was previously made when searching from the folder list.  This
change is applicable when searching while choosing a
folder (e.g. a destination folder for a copy operation).
Eliminate unused code.
Merge branch 'wrap_folder_name_2' into folder_search

Conflicts:
	src/com/fsck/k9/activity/FolderList.java
Provide message search capability from the folder list.

The search is performed in all folders for the account
to which the folders belong.
Merge remote-tracking branch 'zjw/folder_search'

* zjw/folder_search:
  Provide message search capability from the folder list.
  Eliminate unused code.
  Switch to using the action bar for folder searches.
  Use a more appropriate title when diplaying folder search results.
  Switch to using the action bar for folder searches.
  Provide new action bar "find folder" icons
  Create action buttons to search for folders.
  Readjust settings version number based on current master
  Control wrapping of folder names programmatically only
  Permit the folder list item to expand vertically.
  Create new preference option for wrapping folder names in folder list view.
  Issue 1911:  Permit folder names to wrap on multiple lines in folder list view so users can see the entire name.
Make the default folder name size in the folder list the same as the default account name size in the account list
tweak some phrasing for brevity