Should warn hyphenation for document language is not installed (and the document uses it)

[Václav Šmilauer]

Opening a document which had active hyphenation (different installation of LO) on a machine where LO lacks relevant hyphenation packages results in substantial changes in formatting -- usually larger interword-spaces and paragraphs taking more lines than they did before. There is no hint that hyphenation for that particular language is not available; unless the user gives detailed look to discover no hyphenation at all, he/she may quickly come to the conclusion that the document or LO installation is "broken".

Writer should show some (non-intrusive) message that hyphenation for the language is not available and what should be done to activate it.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: libreoffice-writer 1:5.1.1~rc2-0ubuntu1~xenial1
ProcVersionSignature: Ubuntu 3.19.0-49.55-lowlatency 3.19.8-ckt12
Uname: Linux 3.19.0-49-lowlatency x86_64
NonfreeKernelModules: btrfs ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs libcrc32c pci_stub binfmt_misc cfg80211 joydev hid_logitech_hidpp snd_hda_codec_hdmi snd_hda_intel snd_hda_controller eeepc_wmi asus_wmi sparse_keymap snd_hda_codec x86_pkg_temp_thermal intel_powerclamp video snd_hwdep snd_pcm snd_seq_midi kvm_intel snd_seq_midi_event kvm snd_rawmidi crct10dif_pclmul snd_seq crc32_pclmul snd_seq_device snd_timer snd aesni_intel sb_edac aes_x86_64 lrw soundcore gf128mul glue_helper edac_core ablk_helper serio_raw mei_me cryptd mei lpc_ich tpm_infineon 8250_fintek shpchp mac_hid nct6775 hwmon_vid coretemp parport_pc ppdev nfsd lp auth_rpcgss nfs_acl lockd grace sunrpc parport autofs4 raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq raid0 multipath linear hid_logitech_dj usbhid hid raid1 amdkfd amd_iommu_v2 mxm_wmi radeon igb ttm drm_kms_helper dca psmouse ptp drm ahci pps_core libahci i2c_algo_bit wmi
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
CurrentDesktop: XFCE
Date: Wed Mar 16 09:27:38 2016
SourcePackage: libreoffice
UpgradeStatus: Upgraded to xenial on 2012-03-12 (1464 days ago)