Set the default key length to 1024 bits instead of 512 bits.
Add GRSTx509MakeProxyRequestKS and GRSTx509CreateProxyRequestKS, those should be used instead of non ...KS functions. KS functions adds explicit keysize option to the API. In future major versions of gridsite, non KS functions may be removed and KS merged with _int functions.
Merge branch 'gridsite-core_branch_2_0_5_cherry' of https://github.com/CESNET/gridsite into gridsite-core_branch_2_0_5_cherry