add heap_clone_allocator in ValueBase to be compatible with boosts clonable concept
make type_compare and co. in value.hpp a struct
Merge branch 'api_change' into ch_value
replace type_compare for value by a more generic operator-struct
tell boost/type_traits Selection that should not do +,-,* or /
some cleanup / make type_op more flexible
disable + and - for ptime and date (for now)
Merge branch 'api_change' into ch_value
cleanup / remove non-needed template parameters
add add/substract for +=/-= operations
add struct knowType
add multiply and divide
Merge branch 'ch_value' of github.com:DerOrfa/isis into ch_value
Merge branch 'ch_value' into ch_propvalue
move operator doc to value_base.hpp and add warning when doing int-operator with a float right hand value
Merge branch 'ch_value' of github.com:DerOrfa/isis into ch_value
Merge branch 'ch_value' into ch_propvalue
Merge branch 'ch_propvalue' of github.com:DerOrfa/isis into ch_propvalue
some cleanup and make type_op throw domain_error on conversion errors
Merge branch 'api_change' into ch_value