integer_to_binary/2 is available since OTP17

[NelsonVides]

And list_to_integer or binary_to_integer have the same API, throwing the same errors and so on.
Also, try-of-catch is better than case catch, errors are clearer and it doesn't build a stacktrace.

[mongoose-im]

9020.1 / Erlang 23.0.3 / small_tests / feea90f
Reports root / small

---

9020.2 / Erlang 23.0.3 / internal_mnesia / feea90f
Reports root/ big
OK: 1503 / Failed: 0 / User-skipped: 161 / Auto-skipped: 0

---

9020.3 / Erlang 23.0.3 / odbc_mssql_mnesia / feea90f
Reports root/ big
OK: 2771 / Failed: 0 / User-skipped: 229 / Auto-skipped: 0

---

9020.4 / Erlang 23.0.3 / mysql_redis / feea90f
Reports root/ big
OK: 2766 / Failed: 0 / User-skipped: 234 / Auto-skipped: 0

---

9020.7 / Erlang 23.0.3 / elasticsearch_and_cassandra_mnesia / feea90f
Reports root/ big
OK: 331 / Failed: 0 / User-skipped: 38 / Auto-skipped: 0

---

9020.5 / Erlang 23.0.3 / riak_mnesia / feea90f
Reports root/ big
OK: 1629 / Failed: 0 / User-skipped: 181 / Auto-skipped: 0

---

9020.6 / Erlang 23.0.3 / ldap_mnesia / feea90f
Reports root/ big
OK: 1405 / Failed: 0 / User-skipped: 259 / Auto-skipped: 0

---

9020.9 / Erlang 22.3 / pgsql_mnesia / feea90f
Reports root/ big / small
OK: 2784 / Failed: 0 / User-skipped: 216 / Auto-skipped: 0

[codecov]

Codecov Report

Merging #3008 (1c2d7e1) into master (7f60757) will decrease coverage by 0.10%.
The diff coverage is 75.00%.

@@            Coverage Diff             @@
##           master    #3008      +/-   ##
==========================================
- Coverage   79.18%   79.07%   -0.11%     
==========================================
  Files         377      377              
  Lines       32757    32757              
==========================================
- Hits        25937    25903      -34     
- Misses       6820     6854      +34     

Impacted Files	Coverage Δ
src/mod_muc_room.erl	77.25% <ø> (-0.30%)	⬇️
src/offline/mod_offline.erl	78.07% <50.00%> (ø)
src/ejabberd_c2s.erl	89.33% <66.66%> (ø)
src/mam/mod_mam_utils.erl	88.99% <100.00%> (-0.65%)	⬇️
src/mod_privacy.erl	86.61% <100.00%> (ø)
src/elasticsearch/mongoose_elasticsearch.erl	76.92% <0.00%> (-7.70%)	⬇️
src/mam/mod_mam_rdbms_prefs.erl	90.99% <0.00%> (-3.61%)	⬇️
...c/global_distrib/mod_global_distrib_server_mgr.erl	75.14% <0.00%> (-2.26%)	⬇️
src/rdbms/mongoose_rdbms.erl	65.40% <0.00%> (-1.90%)	⬇️
src/ejabberd_s2s_out.erl	57.89% <0.00%> (-1.84%)	⬇️
... and 9 more

---

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[janciesla8818]

Looks good, thanks for the changes.