Merge pull request #1 from Ensembles/master

Updates from main
Merge pull request #2 from Ensembles/master

dl lib on linux only
Added simple function test_install_SIGNALS to test_util
Much work on MSW - have added collections of segments and connections. ERT-130
Trivial: changed 2011 -> 2013 in Copyright header. ERT-130
Added well_info test. ERT-130
Added type macros to well_conn + ability to add references to well_conn_collection
Added basic functionality to load segments from file
Added segment_collection get based on segment_id + load from file
Added missing int_vector_free()
Added NRSEGZ to INTEHEAD constants and ecl_rsthead
Added RSEG_KW as #define constant
Added link to rseg data
Added test for both segment and connection loading
Added GLOBAL_GRID string - to be used as hash key. ERT-130
Started on well_segment_add_connection() ERT-130
well_segment_add_connections() complete ERT-130
Added well_branch_collection ERT-130
Changed text in assert_ptr_not_equal()
Added small test application segment_info ERT-130